21026730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1063

約数の個数: 64

約数和(自身を含む): 54610560

約数和(自身を除く): 33583830

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 37, 38, 57, 74, 95, 111, 114, 185, 190, 222, 285, 370, 555, 570, 703, 997, 1110, 1406, 1994, 2109, 2991, 3515, 4218, 4985, 5982, 7030, 9970, 10545, 14955, 18943, 21090, 29910, 36889, 37886, 56829, 73778, 94715, 110667, 113658, 184445, 189430, 221334, 284145, 368890, 553335, 568290, 700891, 1106670, 1401782, 2102673, 3504455, 4205346, 7008910, 10513365, 21026730]

約数ペア:

[(1, 21026730), (2, 10513365), (3, 7008910), (5, 4205346), (6, 3504455), (10, 2102673), (15, 1401782), (19, 1106670), (30, 700891), (37, 568290), (38, 553335), (57, 368890), (74, 284145), (95, 221334), (111, 189430), (114, 184445), (185, 113658), (190, 110667), (222, 94715), (285, 73778), (370, 56829), (555, 37886), (570, 36889), (703, 29910), (997, 21090), (1110, 18943), (1406, 14955), (1994, 10545), (2109, 9970), (2991, 7030), (3515, 5982), (4218, 4985)]