21840570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3517}}^1$

素因数の和:3556

約数の個数: 64

約数和(自身を含む): 60791040

約数和(自身を除く): 38950470

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, 3517, 6210, 7034, 10551, 17585, 21102, 31653, 35170, 52755, 63306, 80891, 94959, 105510, 158265, 161782, 189918, 242673, 316530, 404455, 474795, 485346, 728019, 808910, 949590, 1213365, 1456038, 2184057, 2426730, 3640095, 4368114, 7280190, 10920285, 21840570]

約数ペア:

[(1, 21840570), (2, 10920285), (3, 7280190), (5, 4368114), (6, 3640095), (9, 2426730), (10, 2184057), (15, 1456038), (18, 1213365), (23, 949590), (27, 808910), (30, 728019), (45, 485346), (46, 474795), (54, 404455), (69, 316530), (90, 242673), (115, 189918), (135, 161782), (138, 158265), (207, 105510), (230, 94959), (270, 80891), (345, 63306), (414, 52755), (621, 35170), (690, 31653), (1035, 21102), (1242, 17585), (2070, 10551), (3105, 7034), (3517, 6210)]