20489976

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{7297}}^1$

素因数の和:7325

約数の個数: 64

約数和(自身を含む): 61303200

約数和(自身を除く): 40813224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 104, 108, 117, 156, 216, 234, 312, 351, 468, 702, 936, 1404, 2808, 7297, 14594, 21891, 29188, 43782, 58376, 65673, 87564, 94861, 131346, 175128, 189722, 197019, 262692, 284583, 379444, 394038, 525384, 569166, 758888, 788076, 853749, 1138332, 1576152, 1707498, 2276664, 2561247, 3414996, 5122494, 6829992, 10244988, 20489976]

約数ペア:

[(1, 20489976), (2, 10244988), (3, 6829992), (4, 5122494), (6, 3414996), (8, 2561247), (9, 2276664), (12, 1707498), (13, 1576152), (18, 1138332), (24, 853749), (26, 788076), (27, 758888), (36, 569166), (39, 525384), (52, 394038), (54, 379444), (72, 284583), (78, 262692), (104, 197019), (108, 189722), (117, 175128), (156, 131346), (216, 94861), (234, 87564), (312, 65673), (351, 58376), (468, 43782), (702, 29188), (936, 21891), (1404, 14594), (2808, 7297)]