21031875968

素因数分解:

$2^7\times {\mathrm{83}}^1\times {\mathrm{571}}^1\times {\mathrm{3467}}^1$

素因数の和:4135

約数の個数: 64

約数和(自身を含む): 42490768320

約数和(自身を除く): 21458892352

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 332, 571, 664, 1142, 1328, 2284, 2656, 3467, 4568, 5312, 6934, 9136, 10624, 13868, 18272, 27736, 36544, 47393, 55472, 73088, 94786, 110944, 189572, 221888, 287761, 379144, 443776, 575522, 758288, 1151044, 1516576, 1979657, 2302088, 3033152, 3959314, 4604176, 6066304, 7918628, 9208352, 15837256, 18416704, 31674512, 36833408, 63349024, 126698048, 164311531, 253396096, 328623062, 657246124, 1314492248, 2628984496, 5257968992, 10515937984, 21031875968]

約数ペア:

[(1, 21031875968), (2, 10515937984), (4, 5257968992), (8, 2628984496), (16, 1314492248), (32, 657246124), (64, 328623062), (83, 253396096), (128, 164311531), (166, 126698048), (332, 63349024), (571, 36833408), (664, 31674512), (1142, 18416704), (1328, 15837256), (2284, 9208352), (2656, 7918628), (3467, 6066304), (4568, 4604176), (5312, 3959314), (6934, 3033152), (9136, 2302088), (10624, 1979657), (13868, 1516576), (18272, 1151044), (27736, 758288), (36544, 575522), (47393, 443776), (55472, 379144), (73088, 287761), (94786, 221888), (110944, 189572)]