21490650

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{15919}}^1$

素因数の和:15940

約数の個数: 48

約数和(自身を含む): 59222400

約数和(自身を除く): 37731750

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 90, 135, 150, 225, 270, 450, 675, 1350, 15919, 31838, 47757, 79595, 95514, 143271, 159190, 238785, 286542, 397975, 429813, 477570, 716355, 795950, 859626, 1193925, 1432710, 2149065, 2387850, 3581775, 4298130, 7163550, 10745325, 21490650]

約数ペア:

[(1, 21490650), (2, 10745325), (3, 7163550), (5, 4298130), (6, 3581775), (9, 2387850), (10, 2149065), (15, 1432710), (18, 1193925), (25, 859626), (27, 795950), (30, 716355), (45, 477570), (50, 429813), (54, 397975), (75, 286542), (90, 238785), (135, 159190), (150, 143271), (225, 95514), (270, 79595), (450, 47757), (675, 31838), (1350, 15919)]