21474985

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 32438016

約数和(自身を除く): 10963031

約数列:

[1, 5, 7, 23, 35, 37, 49, 103, 115, 161, 185, 245, 259, 515, 721, 805, 851, 1127, 1295, 1813, 2369, 3605, 3811, 4255, 5047, 5635, 5957, 9065, 11845, 16583, 19055, 25235, 26677, 29785, 41699, 82915, 87653, 116081, 133385, 186739, 208495, 438265, 580405, 613571, 933695, 3067855, 4294997, 21474985]

約数ペア:

[(1, 21474985), (5, 4294997), (7, 3067855), (23, 933695), (35, 613571), (37, 580405), (49, 438265), (103, 208495), (115, 186739), (161, 133385), (185, 116081), (245, 87653), (259, 82915), (515, 41699), (721, 29785), (805, 26677), (851, 25235), (1127, 19055), (1295, 16583), (1813, 11845), (2369, 9065), (3605, 5957), (3811, 5635), (4255, 5047)]