18374265

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:679

約数の個数: 72

約数和(自身を含む): 39960648

約数和(自身を除く): 21586383

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 315, 441, 455, 585, 637, 641, 735, 819, 1365, 1911, 1923, 2205, 3185, 3205, 4095, 4487, 5733, 5769, 8333, 9555, 9615, 13461, 22435, 24999, 28665, 28845, 31409, 40383, 41665, 58331, 67305, 74997, 94227, 124995, 157045, 174993, 201915, 282681, 291655, 374985, 408317, 471135, 524979, 874965, 1224951, 1413405, 2041585, 2624895, 3674853, 6124755, 18374265]

約数ペア:

[(1, 18374265), (3, 6124755), (5, 3674853), (7, 2624895), (9, 2041585), (13, 1413405), (15, 1224951), (21, 874965), (35, 524979), (39, 471135), (45, 408317), (49, 374985), (63, 291655), (65, 282681), (91, 201915), (105, 174993), (117, 157045), (147, 124995), (195, 94227), (245, 74997), (273, 67305), (315, 58331), (441, 41665), (455, 40383), (585, 31409), (637, 28845), (641, 28665), (735, 24999), (819, 22435), (1365, 13461), (1911, 9615), (1923, 9555), (2205, 8333), (3185, 5769), (3205, 5733), (4095, 4487)]