21863030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 47029248

約数和(自身を除く): 25166218

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 71, 83, 106, 142, 166, 265, 355, 371, 415, 497, 530, 581, 710, 742, 830, 994, 1162, 1855, 2485, 2905, 3710, 3763, 4399, 4970, 5810, 5893, 7526, 8798, 11786, 18815, 21995, 26341, 29465, 30793, 37630, 41251, 43990, 52682, 58930, 61586, 82502, 131705, 153965, 206255, 263410, 307930, 312329, 412510, 624658, 1561645, 2186303, 3123290, 4372606, 10931515, 21863030]

約数ペア:

[(1, 21863030), (2, 10931515), (5, 4372606), (7, 3123290), (10, 2186303), (14, 1561645), (35, 624658), (53, 412510), (70, 312329), (71, 307930), (83, 263410), (106, 206255), (142, 153965), (166, 131705), (265, 82502), (355, 61586), (371, 58930), (415, 52682), (497, 43990), (530, 41251), (581, 37630), (710, 30793), (742, 29465), (830, 26341), (994, 21995), (1162, 18815), (1855, 11786), (2485, 8798), (2905, 7526), (3710, 5893), (3763, 5810), (4399, 4970)]