21999250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{967}}^1$

素因数の和:1004

約数の個数: 64

約数和(自身を含む): 50738688

約数和(自身を除く): 28739438

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 125, 130, 175, 182, 250, 325, 350, 455, 650, 875, 910, 967, 1625, 1750, 1934, 2275, 3250, 4550, 4835, 6769, 9670, 11375, 12571, 13538, 22750, 24175, 25142, 33845, 48350, 62855, 67690, 87997, 120875, 125710, 169225, 175994, 241750, 314275, 338450, 439985, 628550, 846125, 879970, 1571375, 1692250, 2199925, 3142750, 4399850, 10999625, 21999250]

約数ペア:

[(1, 21999250), (2, 10999625), (5, 4399850), (7, 3142750), (10, 2199925), (13, 1692250), (14, 1571375), (25, 879970), (26, 846125), (35, 628550), (50, 439985), (65, 338450), (70, 314275), (91, 241750), (125, 175994), (130, 169225), (175, 125710), (182, 120875), (250, 87997), (325, 67690), (350, 62855), (455, 48350), (650, 33845), (875, 25142), (910, 24175), (967, 22750), (1625, 13538), (1750, 12571), (1934, 11375), (2275, 9670), (3250, 6769), (4550, 4835)]