21994440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:663

約数の個数: 128

約数和(自身を含む): 74269440

約数和(自身を除く): 52275000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 613, 690, 780, 897, 920, 1196, 1226, 1380, 1495, 1560, 1794, 1839, 2392, 2452, 2760, 2990, 3065, 3588, 3678, 4485, 4904, 5980, 6130, 7176, 7356, 7969, 8970, 9195, 11960, 12260, 14099, 14712, 15938, 17940, 18390, 23907, 24520, 28198, 31876, 35880, 36780, 39845, 42297, 47814, 56396, 63752, 70495, 73560, 79690, 84594, 95628, 112792, 119535, 140990, 159380, 169188, 183287, 191256, 211485, 239070, 281980, 318760, 338376, 366574, 422970, 478140, 549861, 563960, 733148, 845940, 916435, 956280, 1099722, 1466296, 1691880, 1832870, 2199444, 2749305, 3665740, 4398888, 5498610, 7331480, 10997220, 21994440]

約数ペア:

[(1, 21994440), (2, 10997220), (3, 7331480), (4, 5498610), (5, 4398888), (6, 3665740), (8, 2749305), (10, 2199444), (12, 1832870), (13, 1691880), (15, 1466296), (20, 1099722), (23, 956280), (24, 916435), (26, 845940), (30, 733148), (39, 563960), (40, 549861), (46, 478140), (52, 422970), (60, 366574), (65, 338376), (69, 318760), (78, 281980), (92, 239070), (104, 211485), (115, 191256), (120, 183287), (130, 169188), (138, 159380), (156, 140990), (184, 119535), (195, 112792), (230, 95628), (260, 84594), (276, 79690), (299, 73560), (312, 70495), (345, 63752), (390, 56396), (460, 47814), (520, 42297), (552, 39845), (598, 36780), (613, 35880), (690, 31876), (780, 28198), (897, 24520), (920, 23907), (1196, 18390), (1226, 17940), (1380, 15938), (1495, 14712), (1560, 14099), (1794, 12260), (1839, 11960), (2392, 9195), (2452, 8970), (2760, 7969), (2990, 7356), (3065, 7176), (3588, 6130), (3678, 5980), (4485, 4904)]