18764655

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 18974865

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 59, 65, 91, 105, 177, 195, 233, 273, 295, 413, 455, 699, 767, 885, 1165, 1239, 1365, 1631, 2065, 2301, 3029, 3495, 3835, 4893, 5369, 6195, 8155, 9087, 11505, 13747, 15145, 16107, 21203, 24465, 26845, 41241, 45435, 63609, 68735, 80535, 96229, 106015, 178711, 206205, 288687, 318045, 481145, 536133, 893555, 1250977, 1443435, 2680665, 3752931, 6254885, 18764655]

約数ペア:

[(1, 18764655), (3, 6254885), (5, 3752931), (7, 2680665), (13, 1443435), (15, 1250977), (21, 893555), (35, 536133), (39, 481145), (59, 318045), (65, 288687), (91, 206205), (105, 178711), (177, 106015), (195, 96229), (233, 80535), (273, 68735), (295, 63609), (413, 45435), (455, 41241), (699, 26845), (767, 24465), (885, 21203), (1165, 16107), (1239, 15145), (1365, 13747), (1631, 11505), (2065, 9087), (2301, 8155), (3029, 6195), (3495, 5369), (3835, 4893)]