21728790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3499}}^1$

素因数の和:3538

約数の個数: 64

約数和(自身を含む): 60480000

約数和(自身を除く): 38751210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 690, 1035, 1242, 2070, 3105, 3499, 6210, 6998, 10497, 17495, 20994, 31491, 34990, 52485, 62982, 80477, 94473, 104970, 157455, 160954, 188946, 241431, 314910, 402385, 472365, 482862, 724293, 804770, 944730, 1207155, 1448586, 2172879, 2414310, 3621465, 4345758, 7242930, 10864395, 21728790]

約数ペア:

[(1, 21728790), (2, 10864395), (3, 7242930), (5, 4345758), (6, 3621465), (9, 2414310), (10, 2172879), (15, 1448586), (18, 1207155), (23, 944730), (27, 804770), (30, 724293), (45, 482862), (46, 472365), (54, 402385), (69, 314910), (90, 241431), (115, 188946), (135, 160954), (138, 157455), (207, 104970), (230, 94473), (270, 80477), (345, 62982), (414, 52485), (621, 34990), (690, 31491), (1035, 20994), (1242, 17495), (2070, 10497), (3105, 6998), (3499, 6210)]