21571992

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1257

約数の個数: 96

約数和(自身を含む): 66284400

約数和(自身を除く): 44712408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 19, 24, 26, 36, 38, 39, 52, 57, 72, 76, 78, 104, 114, 117, 152, 156, 171, 228, 234, 247, 312, 342, 456, 468, 494, 684, 741, 936, 988, 1213, 1368, 1482, 1976, 2223, 2426, 2964, 3639, 4446, 4852, 5928, 7278, 8892, 9704, 10917, 14556, 15769, 17784, 21834, 23047, 29112, 31538, 43668, 46094, 47307, 63076, 69141, 87336, 92188, 94614, 126152, 138282, 141921, 184376, 189228, 207423, 276564, 283842, 299611, 378456, 414846, 553128, 567684, 599222, 829692, 898833, 1135368, 1198444, 1659384, 1797666, 2396888, 2696499, 3595332, 5392998, 7190664, 10785996, 21571992]

約数ペア:

[(1, 21571992), (2, 10785996), (3, 7190664), (4, 5392998), (6, 3595332), (8, 2696499), (9, 2396888), (12, 1797666), (13, 1659384), (18, 1198444), (19, 1135368), (24, 898833), (26, 829692), (36, 599222), (38, 567684), (39, 553128), (52, 414846), (57, 378456), (72, 299611), (76, 283842), (78, 276564), (104, 207423), (114, 189228), (117, 184376), (152, 141921), (156, 138282), (171, 126152), (228, 94614), (234, 92188), (247, 87336), (312, 69141), (342, 63076), (456, 47307), (468, 46094), (494, 43668), (684, 31538), (741, 29112), (936, 23047), (988, 21834), (1213, 17784), (1368, 15769), (1482, 14556), (1976, 10917), (2223, 9704), (2426, 8892), (2964, 7278), (3639, 5928), (4446, 4852)]