21085247052

素因数分解:

$2^2\times 3^5\times {\mathrm{1063}}^1\times {\mathrm{20407}}^1$

素因数の和:21489

約数の個数: 72

約数和(自身を含む): 55327557376

約数和(自身を除く): 34242310324

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972, 1063, 2126, 3189, 4252, 6378, 9567, 12756, 19134, 20407, 28701, 38268, 40814, 57402, 61221, 81628, 86103, 114804, 122442, 172206, 183663, 244884, 258309, 344412, 367326, 516618, 550989, 734652, 1033236, 1101978, 1652967, 2203956, 3305934, 4958901, 6611868, 9917802, 19835604, 21692641, 43385282, 65077923, 86770564, 130155846, 195233769, 260311692, 390467538, 585701307, 780935076, 1171402614, 1757103921, 2342805228, 3514207842, 5271311763, 7028415684, 10542623526, 21085247052]

約数ペア:

[(1, 21085247052), (2, 10542623526), (3, 7028415684), (4, 5271311763), (6, 3514207842), (9, 2342805228), (12, 1757103921), (18, 1171402614), (27, 780935076), (36, 585701307), (54, 390467538), (81, 260311692), (108, 195233769), (162, 130155846), (243, 86770564), (324, 65077923), (486, 43385282), (972, 21692641), (1063, 19835604), (2126, 9917802), (3189, 6611868), (4252, 4958901), (6378, 3305934), (9567, 2203956), (12756, 1652967), (19134, 1101978), (20407, 1033236), (28701, 734652), (38268, 550989), (40814, 516618), (57402, 367326), (61221, 344412), (81628, 258309), (86103, 244884), (114804, 183663), (122442, 172206)]