21491850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{7541}}^1$

素因数の和:7575

約数の個数: 48

約数和(自身を含む): 56112480

約数和(自身を除く): 34620630

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 150, 190, 285, 475, 570, 950, 1425, 2850, 7541, 15082, 22623, 37705, 45246, 75410, 113115, 143279, 188525, 226230, 286558, 377050, 429837, 565575, 716395, 859674, 1131150, 1432790, 2149185, 3581975, 4298370, 7163950, 10745925, 21491850]

約数ペア:

[(1, 21491850), (2, 10745925), (3, 7163950), (5, 4298370), (6, 3581975), (10, 2149185), (15, 1432790), (19, 1131150), (25, 859674), (30, 716395), (38, 565575), (50, 429837), (57, 377050), (75, 286558), (95, 226230), (114, 188525), (150, 143279), (190, 113115), (285, 75410), (475, 45246), (570, 37705), (950, 22623), (1425, 15082), (2850, 7541)]