21452868

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 57308160

約数和(自身を除く): 35855292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 47, 62, 93, 94, 124, 141, 186, 188, 279, 282, 372, 409, 423, 558, 564, 818, 846, 1116, 1227, 1457, 1636, 1692, 2454, 2914, 3681, 4371, 4908, 5828, 7362, 8742, 12679, 13113, 14724, 17484, 19223, 25358, 26226, 38037, 38446, 50716, 52452, 57669, 76074, 76892, 114111, 115338, 152148, 173007, 228222, 230676, 346014, 456444, 595913, 692028, 1191826, 1787739, 2383652, 3575478, 5363217, 7150956, 10726434, 21452868]

約数ペア:

[(1, 21452868), (2, 10726434), (3, 7150956), (4, 5363217), (6, 3575478), (9, 2383652), (12, 1787739), (18, 1191826), (31, 692028), (36, 595913), (47, 456444), (62, 346014), (93, 230676), (94, 228222), (124, 173007), (141, 152148), (186, 115338), (188, 114111), (279, 76892), (282, 76074), (372, 57669), (409, 52452), (423, 50716), (558, 38446), (564, 38037), (818, 26226), (846, 25358), (1116, 19223), (1227, 17484), (1457, 14724), (1636, 13113), (1692, 12679), (2454, 8742), (2914, 7362), (3681, 5828), (4371, 4908)]