20573775

素因数分解:

$3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1499}}^1$

素因数の和:1576

約数の個数: 36

約数和(自身を含む): 37479000

約数和(自身を除く): 16905225

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 183, 225, 305, 549, 915, 1499, 1525, 2745, 4497, 4575, 7495, 13491, 13725, 22485, 37475, 67455, 91439, 112425, 274317, 337275, 457195, 822951, 1371585, 2285975, 4114755, 6857925, 20573775]

約数ペア:

[(1, 20573775), (3, 6857925), (5, 4114755), (9, 2285975), (15, 1371585), (25, 822951), (45, 457195), (61, 337275), (75, 274317), (183, 112425), (225, 91439), (305, 67455), (549, 37475), (915, 22485), (1499, 13725), (1525, 13491), (2745, 7495), (4497, 4575)]