21457474

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:234

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 13067966

約数列:

[1, 2, 47, 53, 59, 73, 94, 106, 118, 146, 2491, 2773, 3127, 3431, 3869, 4307, 4982, 5546, 6254, 6862, 7738, 8614, 146969, 181843, 202429, 228271, 293938, 363686, 404858, 456542, 10728737, 21457474]

約数ペア:

[(1, 21457474), (2, 10728737), (47, 456542), (53, 404858), (59, 363686), (73, 293938), (94, 228271), (106, 202429), (118, 181843), (146, 146969), (2491, 8614), (2773, 7738), (3127, 6862), (3431, 6254), (3869, 5546), (4307, 4982)]