18859365

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{2851}}^1$

素因数の和:2879

約数の個数: 48

約数和(自身を含む): 39015360

約数和(自身を除く): 20155995

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 2851, 6615, 8553, 14255, 19957, 25659, 42765, 59871, 76977, 99785, 128295, 139699, 179613, 299355, 384885, 419097, 538839, 698495, 898065, 1257291, 2095485, 2694195, 3771873, 6286455, 18859365]

約数ペア:

[(1, 18859365), (3, 6286455), (5, 3771873), (7, 2694195), (9, 2095485), (15, 1257291), (21, 898065), (27, 698495), (35, 538839), (45, 419097), (49, 384885), (63, 299355), (105, 179613), (135, 139699), (147, 128295), (189, 99785), (245, 76977), (315, 59871), (441, 42765), (735, 25659), (945, 19957), (1323, 14255), (2205, 8553), (2851, 6615)]