20701278

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{797}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 50944320

約数和(自身を除く): 30243042

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 37, 39, 54, 74, 78, 111, 117, 222, 234, 333, 351, 481, 666, 702, 797, 962, 999, 1443, 1594, 1998, 2391, 2886, 4329, 4782, 7173, 8658, 10361, 12987, 14346, 20722, 21519, 25974, 29489, 31083, 43038, 58978, 62166, 88467, 93249, 176934, 186498, 265401, 279747, 383357, 530802, 559494, 766714, 796203, 1150071, 1592406, 2300142, 3450213, 6900426, 10350639, 20701278]

約数ペア:

[(1, 20701278), (2, 10350639), (3, 6900426), (6, 3450213), (9, 2300142), (13, 1592406), (18, 1150071), (26, 796203), (27, 766714), (37, 559494), (39, 530802), (54, 383357), (74, 279747), (78, 265401), (111, 186498), (117, 176934), (222, 93249), (234, 88467), (333, 62166), (351, 58978), (481, 43038), (666, 31083), (702, 29489), (797, 25974), (962, 21519), (999, 20722), (1443, 14346), (1594, 12987), (1998, 10361), (2391, 8658), (2886, 7173), (4329, 4782)]