21997206

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:354

約数の個数: 96

約数和(自身を含む): 60652800

約数和(自身を除く): 38655594

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 59, 63, 66, 77, 99, 118, 126, 154, 177, 198, 231, 269, 354, 413, 462, 531, 538, 649, 693, 807, 826, 1062, 1239, 1298, 1386, 1614, 1883, 1947, 2421, 2478, 2959, 3717, 3766, 3894, 4543, 4842, 5649, 5841, 5918, 7434, 8877, 9086, 11298, 11682, 13629, 15871, 16947, 17754, 20713, 26631, 27258, 31742, 33894, 40887, 41426, 47613, 53262, 62139, 81774, 95226, 111097, 124278, 142839, 174581, 186417, 222194, 285678, 333291, 349162, 372834, 523743, 666582, 999873, 1047486, 1222067, 1571229, 1999746, 2444134, 3142458, 3666201, 7332402, 10998603, 21997206]

約数ペア:

[(1, 21997206), (2, 10998603), (3, 7332402), (6, 3666201), (7, 3142458), (9, 2444134), (11, 1999746), (14, 1571229), (18, 1222067), (21, 1047486), (22, 999873), (33, 666582), (42, 523743), (59, 372834), (63, 349162), (66, 333291), (77, 285678), (99, 222194), (118, 186417), (126, 174581), (154, 142839), (177, 124278), (198, 111097), (231, 95226), (269, 81774), (354, 62139), (413, 53262), (462, 47613), (531, 41426), (538, 40887), (649, 33894), (693, 31742), (807, 27258), (826, 26631), (1062, 20713), (1239, 17754), (1298, 16947), (1386, 15871), (1614, 13629), (1883, 11682), (1947, 11298), (2421, 9086), (2478, 8877), (2959, 7434), (3717, 5918), (3766, 5841), (3894, 5649), (4543, 4842)]