21354372

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{443}}^1$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 58828224

約数和(自身を除く): 37473852

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 103, 117, 156, 206, 234, 309, 412, 443, 468, 618, 886, 927, 1236, 1329, 1339, 1772, 1854, 2658, 2678, 3708, 3987, 4017, 5316, 5356, 5759, 7974, 8034, 11518, 12051, 15948, 16068, 17277, 23036, 24102, 34554, 45629, 48204, 51831, 69108, 91258, 103662, 136887, 182516, 207324, 273774, 410661, 547548, 593177, 821322, 1186354, 1642644, 1779531, 2372708, 3559062, 5338593, 7118124, 10677186, 21354372]

約数ペア:

[(1, 21354372), (2, 10677186), (3, 7118124), (4, 5338593), (6, 3559062), (9, 2372708), (12, 1779531), (13, 1642644), (18, 1186354), (26, 821322), (36, 593177), (39, 547548), (52, 410661), (78, 273774), (103, 207324), (117, 182516), (156, 136887), (206, 103662), (234, 91258), (309, 69108), (412, 51831), (443, 48204), (468, 45629), (618, 34554), (886, 24102), (927, 23036), (1236, 17277), (1329, 16068), (1339, 15948), (1772, 12051), (1854, 11518), (2658, 8034), (2678, 7974), (3708, 5759), (3987, 5356), (4017, 5316)]