18378255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{457}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 33767424

約数和(自身を除く): 15389169

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 383, 457, 1149, 1371, 1915, 2285, 2681, 3199, 5745, 6855, 8043, 9597, 13405, 15995, 40215, 47985, 175031, 525093, 875155, 1225217, 2625465, 3675651, 6126085, 18378255]

約数ペア:

[(1, 18378255), (3, 6126085), (5, 3675651), (7, 2625465), (15, 1225217), (21, 875155), (35, 525093), (105, 175031), (383, 47985), (457, 40215), (1149, 15995), (1371, 13405), (1915, 9597), (2285, 8043), (2681, 6855), (3199, 5745)]