21930680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{32251}}^1$

素因数の和:32279

約数の個数: 32

約数和(自身を含む): 52248240

約数和(自身を除く): 30317560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 32251, 64502, 129004, 161255, 258008, 322510, 548267, 645020, 1096534, 1290040, 2193068, 2741335, 4386136, 5482670, 10965340, 21930680]

約数ペア:

[(1, 21930680), (2, 10965340), (4, 5482670), (5, 4386136), (8, 2741335), (10, 2193068), (17, 1290040), (20, 1096534), (34, 645020), (40, 548267), (68, 322510), (85, 258008), (136, 161255), (170, 129004), (340, 64502), (680, 32251)]