21620088

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:282

約数の個数: 128

約数和(自身を含む): 69888000

約数和(自身を除く): 48267912

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 79, 84, 108, 126, 158, 168, 181, 189, 216, 237, 252, 316, 362, 378, 474, 504, 543, 553, 632, 711, 724, 756, 948, 1086, 1106, 1267, 1422, 1448, 1512, 1629, 1659, 1896, 2133, 2172, 2212, 2534, 2844, 3258, 3318, 3801, 4266, 4344, 4424, 4887, 4977, 5068, 5688, 6516, 6636, 7602, 8532, 9774, 9954, 10136, 11403, 13032, 13272, 14299, 14931, 15204, 17064, 19548, 19908, 22806, 28598, 29862, 30408, 34209, 39096, 39816, 42897, 45612, 57196, 59724, 68418, 85794, 91224, 100093, 114392, 119448, 128691, 136836, 171588, 200186, 257382, 273672, 300279, 343176, 386073, 400372, 514764, 600558, 772146, 800744, 900837, 1029528, 1201116, 1544292, 1801674, 2402232, 2702511, 3088584, 3603348, 5405022, 7206696, 10810044, 21620088]

約数ペア:

[(1, 21620088), (2, 10810044), (3, 7206696), (4, 5405022), (6, 3603348), (7, 3088584), (8, 2702511), (9, 2402232), (12, 1801674), (14, 1544292), (18, 1201116), (21, 1029528), (24, 900837), (27, 800744), (28, 772146), (36, 600558), (42, 514764), (54, 400372), (56, 386073), (63, 343176), (72, 300279), (79, 273672), (84, 257382), (108, 200186), (126, 171588), (158, 136836), (168, 128691), (181, 119448), (189, 114392), (216, 100093), (237, 91224), (252, 85794), (316, 68418), (362, 59724), (378, 57196), (474, 45612), (504, 42897), (543, 39816), (553, 39096), (632, 34209), (711, 30408), (724, 29862), (756, 28598), (948, 22806), (1086, 19908), (1106, 19548), (1267, 17064), (1422, 15204), (1448, 14931), (1512, 14299), (1629, 13272), (1659, 13032), (1896, 11403), (2133, 10136), (2172, 9954), (2212, 9774), (2534, 8532), (2844, 7602), (3258, 6636), (3318, 6516), (3801, 5688), (4266, 5068), (4344, 4977), (4424, 4887)]