20994012

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:832

約数の個数: 96

約数和(自身を含む): 61779200

約数和(自身を除く): 40785188

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 27, 36, 38, 39, 52, 54, 57, 76, 78, 108, 114, 117, 156, 171, 228, 234, 247, 342, 351, 468, 494, 513, 684, 702, 741, 787, 988, 1026, 1404, 1482, 1574, 2052, 2223, 2361, 2964, 3148, 4446, 4722, 6669, 7083, 8892, 9444, 10231, 13338, 14166, 14953, 20462, 21249, 26676, 28332, 29906, 30693, 40924, 42498, 44859, 59812, 61386, 84996, 89718, 92079, 122772, 134577, 179436, 184158, 194389, 269154, 276237, 368316, 388778, 403731, 538308, 552474, 583167, 777556, 807462, 1104948, 1166334, 1614924, 1749501, 2332668, 3499002, 5248503, 6998004, 10497006, 20994012]

約数ペア:

[(1, 20994012), (2, 10497006), (3, 6998004), (4, 5248503), (6, 3499002), (9, 2332668), (12, 1749501), (13, 1614924), (18, 1166334), (19, 1104948), (26, 807462), (27, 777556), (36, 583167), (38, 552474), (39, 538308), (52, 403731), (54, 388778), (57, 368316), (76, 276237), (78, 269154), (108, 194389), (114, 184158), (117, 179436), (156, 134577), (171, 122772), (228, 92079), (234, 89718), (247, 84996), (342, 61386), (351, 59812), (468, 44859), (494, 42498), (513, 40924), (684, 30693), (702, 29906), (741, 28332), (787, 26676), (988, 21249), (1026, 20462), (1404, 14953), (1482, 14166), (1574, 13338), (2052, 10231), (2223, 9444), (2361, 8892), (2964, 7083), (3148, 6669), (4446, 4722)]