21869172

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{563}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 60357024

約数和(自身を除く): 38487852

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 83, 117, 156, 166, 234, 249, 332, 468, 498, 563, 747, 996, 1079, 1126, 1494, 1689, 2158, 2252, 2988, 3237, 3378, 4316, 5067, 6474, 6756, 7319, 9711, 10134, 12948, 14638, 19422, 20268, 21957, 29276, 38844, 43914, 46729, 65871, 87828, 93458, 131742, 140187, 186916, 263484, 280374, 420561, 560748, 607477, 841122, 1214954, 1682244, 1822431, 2429908, 3644862, 5467293, 7289724, 10934586, 21869172]

約数ペア:

[(1, 21869172), (2, 10934586), (3, 7289724), (4, 5467293), (6, 3644862), (9, 2429908), (12, 1822431), (13, 1682244), (18, 1214954), (26, 841122), (36, 607477), (39, 560748), (52, 420561), (78, 280374), (83, 263484), (117, 186916), (156, 140187), (166, 131742), (234, 93458), (249, 87828), (332, 65871), (468, 46729), (498, 43914), (563, 38844), (747, 29276), (996, 21957), (1079, 20268), (1126, 19422), (1494, 14638), (1689, 12948), (2158, 10134), (2252, 9711), (2988, 7319), (3237, 6756), (3378, 6474), (4316, 5067)]