21490680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{179089}}^1$

素因数の和:179103

約数の個数: 32

約数和(自身を含む): 64472400

約数和(自身を除く): 42981720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 179089, 358178, 537267, 716356, 895445, 1074534, 1432712, 1790890, 2149068, 2686335, 3581780, 4298136, 5372670, 7163560, 10745340, 21490680]

約数ペア:

[(1, 21490680), (2, 10745340), (3, 7163560), (4, 5372670), (5, 4298136), (6, 3581780), (8, 2686335), (10, 2149068), (12, 1790890), (15, 1432712), (20, 1074534), (24, 895445), (30, 716356), (40, 537267), (60, 358178), (120, 179089)]