21044448

素因数分解:

$2^5\times 3^4\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:398

約数の個数: 120

約数和(自身を含む): 64765008

約数和(自身を除く): 43720560

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 32, 36, 46, 48, 54, 69, 72, 81, 92, 96, 108, 138, 144, 162, 184, 207, 216, 276, 288, 324, 353, 368, 414, 432, 552, 621, 648, 706, 736, 828, 864, 1059, 1104, 1242, 1296, 1412, 1656, 1863, 2118, 2208, 2484, 2592, 2824, 3177, 3312, 3726, 4236, 4968, 5648, 6354, 6624, 7452, 8119, 8472, 9531, 9936, 11296, 12708, 14904, 16238, 16944, 19062, 19872, 24357, 25416, 28593, 29808, 32476, 33888, 38124, 48714, 50832, 57186, 59616, 64952, 73071, 76248, 97428, 101664, 114372, 129904, 146142, 152496, 194856, 219213, 228744, 259808, 292284, 304992, 389712, 438426, 457488, 584568, 657639, 779424, 876852, 914976, 1169136, 1315278, 1753704, 2338272, 2630556, 3507408, 5261112, 7014816, 10522224, 21044448]

約数ペア:

[(1, 21044448), (2, 10522224), (3, 7014816), (4, 5261112), (6, 3507408), (8, 2630556), (9, 2338272), (12, 1753704), (16, 1315278), (18, 1169136), (23, 914976), (24, 876852), (27, 779424), (32, 657639), (36, 584568), (46, 457488), (48, 438426), (54, 389712), (69, 304992), (72, 292284), (81, 259808), (92, 228744), (96, 219213), (108, 194856), (138, 152496), (144, 146142), (162, 129904), (184, 114372), (207, 101664), (216, 97428), (276, 76248), (288, 73071), (324, 64952), (353, 59616), (368, 57186), (414, 50832), (432, 48714), (552, 38124), (621, 33888), (648, 32476), (706, 29808), (736, 28593), (828, 25416), (864, 24357), (1059, 19872), (1104, 19062), (1242, 16944), (1296, 16238), (1412, 14904), (1656, 12708), (1863, 11296), (2118, 9936), (2208, 9531), (2484, 8472), (2592, 8119), (2824, 7452), (3177, 6624), (3312, 6354), (3726, 5648), (4236, 4968)]