2148405

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 4158720

約数和(自身を除く): 2010315

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 49, 79, 105, 111, 147, 185, 237, 245, 259, 395, 553, 555, 735, 777, 1185, 1295, 1659, 1813, 2765, 2923, 3871, 3885, 5439, 8295, 8769, 9065, 11613, 14615, 19355, 20461, 27195, 43845, 58065, 61383, 102305, 143227, 306915, 429681, 716135, 2148405]

約数ペア:

[(1, 2148405), (3, 716135), (5, 429681), (7, 306915), (15, 143227), (21, 102305), (35, 61383), (37, 58065), (49, 43845), (79, 27195), (105, 20461), (111, 19355), (147, 14615), (185, 11613), (237, 9065), (245, 8769), (259, 8295), (395, 5439), (553, 3885), (555, 3871), (735, 2923), (777, 2765), (1185, 1813), (1295, 1659)]