21020910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7873}}^1$

素因数の和:7972

約数の個数: 32

約数和(自身を含む): 51023520

約数和(自身を除く): 30002610

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 7873, 15746, 23619, 39365, 47238, 78730, 118095, 236190, 700697, 1401394, 2102091, 3503485, 4204182, 7006970, 10510455, 21020910]

約数ペア:

[(1, 21020910), (2, 10510455), (3, 7006970), (5, 4204182), (6, 3503485), (10, 2102091), (15, 1401394), (30, 700697), (89, 236190), (178, 118095), (267, 78730), (445, 47238), (534, 39365), (890, 23619), (1335, 15746), (2670, 7873)]