18961335

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 35218560

約数和(自身を除く): 16257225

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 67, 95, 171, 201, 285, 331, 335, 603, 855, 993, 1005, 1273, 1655, 2979, 3015, 3819, 4965, 6289, 6365, 11457, 14895, 18867, 19095, 22177, 31445, 56601, 57285, 66531, 94335, 110885, 199593, 283005, 332655, 421363, 997965, 1264089, 2106815, 3792267, 6320445, 18961335]

約数ペア:

[(1, 18961335), (3, 6320445), (5, 3792267), (9, 2106815), (15, 1264089), (19, 997965), (45, 421363), (57, 332655), (67, 283005), (95, 199593), (171, 110885), (201, 94335), (285, 66531), (331, 57285), (335, 56601), (603, 31445), (855, 22177), (993, 19095), (1005, 18867), (1273, 14895), (1655, 11457), (2979, 6365), (3015, 6289), (3819, 4965)]