20725236

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:434

約数の個数: 108

約数和(自身を含む): 63073920

約数和(自身を除く): 42348684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 49, 62, 63, 84, 93, 98, 124, 126, 147, 186, 196, 217, 252, 279, 294, 372, 379, 434, 441, 558, 588, 651, 758, 868, 882, 1116, 1137, 1302, 1516, 1519, 1764, 1953, 2274, 2604, 2653, 3038, 3411, 3906, 4548, 4557, 5306, 6076, 6822, 7812, 7959, 9114, 10612, 11749, 13644, 13671, 15918, 18228, 18571, 23498, 23877, 27342, 31836, 35247, 37142, 46996, 47754, 54684, 55713, 70494, 74284, 82243, 95508, 105741, 111426, 140988, 164486, 167139, 211482, 222852, 246729, 328972, 334278, 422964, 493458, 575701, 668556, 740187, 986916, 1151402, 1480374, 1727103, 2302804, 2960748, 3454206, 5181309, 6908412, 10362618, 20725236]

約数ペア:

[(1, 20725236), (2, 10362618), (3, 6908412), (4, 5181309), (6, 3454206), (7, 2960748), (9, 2302804), (12, 1727103), (14, 1480374), (18, 1151402), (21, 986916), (28, 740187), (31, 668556), (36, 575701), (42, 493458), (49, 422964), (62, 334278), (63, 328972), (84, 246729), (93, 222852), (98, 211482), (124, 167139), (126, 164486), (147, 140988), (186, 111426), (196, 105741), (217, 95508), (252, 82243), (279, 74284), (294, 70494), (372, 55713), (379, 54684), (434, 47754), (441, 46996), (558, 37142), (588, 35247), (651, 31836), (758, 27342), (868, 23877), (882, 23498), (1116, 18571), (1137, 18228), (1302, 15918), (1516, 13671), (1519, 13644), (1764, 11749), (1953, 10612), (2274, 9114), (2604, 7959), (2653, 7812), (3038, 6822), (3411, 6076), (3906, 5306), (4548, 4557)]