21000260016

素因数分解:

$2^4\times 3^3\times {\mathrm{181}}^1\times {\mathrm{268573}}^1$

素因数の和:268771

約数の個数: 80

約数和(自身を含む): 60611780320

約数和(自身を除く): 39611520304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 181, 216, 362, 432, 543, 724, 1086, 1448, 1629, 2172, 2896, 3258, 4344, 4887, 6516, 8688, 9774, 13032, 19548, 26064, 39096, 78192, 268573, 537146, 805719, 1074292, 1611438, 2148584, 2417157, 3222876, 4297168, 4834314, 6445752, 7251471, 9668628, 12891504, 14502942, 19337256, 29005884, 38674512, 48611713, 58011768, 97223426, 116023536, 145835139, 194446852, 291670278, 388893704, 437505417, 583340556, 777787408, 875010834, 1166681112, 1312516251, 1750021668, 2333362224, 2625032502, 3500043336, 5250065004, 7000086672, 10500130008, 21000260016]

約数ペア:

[(1, 21000260016), (2, 10500130008), (3, 7000086672), (4, 5250065004), (6, 3500043336), (8, 2625032502), (9, 2333362224), (12, 1750021668), (16, 1312516251), (18, 1166681112), (24, 875010834), (27, 777787408), (36, 583340556), (48, 437505417), (54, 388893704), (72, 291670278), (108, 194446852), (144, 145835139), (181, 116023536), (216, 97223426), (362, 58011768), (432, 48611713), (543, 38674512), (724, 29005884), (1086, 19337256), (1448, 14502942), (1629, 12891504), (2172, 9668628), (2896, 7251471), (3258, 6445752), (4344, 4834314), (4887, 4297168), (6516, 3222876), (8688, 2417157), (9774, 2148584), (13032, 1611438), (19548, 1074292), (26064, 805719), (39096, 537146), (78192, 268573)]