21291363918

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1\times {\mathrm{661}}^1$

素因数の和:1151

約数の個数: 128

約数和(自身を含む): 52140602880

約数和(自身を除く): 30849238962

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 198, 211, 257, 297, 422, 514, 594, 633, 661, 771, 1266, 1322, 1542, 1899, 1983, 2313, 2321, 2827, 3798, 3966, 4626, 4642, 5654, 5697, 5949, 6939, 6963, 7271, 8481, 11394, 11898, 13878, 13926, 14542, 16962, 17847, 20889, 21813, 25443, 35694, 41778, 43626, 50886, 54227, 62667, 65439, 76329, 108454, 125334, 130878, 139471, 152658, 162681, 169877, 196317, 278942, 325362, 339754, 392634, 418413, 488043, 509631, 596497, 836826, 976086, 1019262, 1192994, 1255239, 1464129, 1528893, 1534181, 1789491, 1868647, 2510478, 2928258, 3057786, 3068362, 3578982, 3737294, 3765717, 4586679, 4602543, 5368473, 5605941, 7531434, 9173358, 9205086, 10736946, 11211882, 13807629, 16105419, 16817823, 27615258, 32210838, 33635646, 35844047, 41422887, 50453469, 71688094, 82845774, 100906938, 107532141, 215064282, 322596423, 394284517, 645192846, 788569034, 967789269, 1182853551, 1935578538, 2365707102, 3548560653, 7097121306, 10645681959, 21291363918]

約数ペア:

[(1, 21291363918), (2, 10645681959), (3, 7097121306), (6, 3548560653), (9, 2365707102), (11, 1935578538), (18, 1182853551), (22, 967789269), (27, 788569034), (33, 645192846), (54, 394284517), (66, 322596423), (99, 215064282), (198, 107532141), (211, 100906938), (257, 82845774), (297, 71688094), (422, 50453469), (514, 41422887), (594, 35844047), (633, 33635646), (661, 32210838), (771, 27615258), (1266, 16817823), (1322, 16105419), (1542, 13807629), (1899, 11211882), (1983, 10736946), (2313, 9205086), (2321, 9173358), (2827, 7531434), (3798, 5605941), (3966, 5368473), (4626, 4602543), (4642, 4586679), (5654, 3765717), (5697, 3737294), (5949, 3578982), (6939, 3068362), (6963, 3057786), (7271, 2928258), (8481, 2510478), (11394, 1868647), (11898, 1789491), (13878, 1534181), (13926, 1528893), (14542, 1464129), (16962, 1255239), (17847, 1192994), (20889, 1019262), (21813, 976086), (25443, 836826), (35694, 596497), (41778, 509631), (43626, 488043), (50886, 418413), (54227, 392634), (62667, 339754), (65439, 325362), (76329, 278942), (108454, 196317), (125334, 169877), (130878, 162681), (139471, 152658)]