217871318

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{18287}}^1$

素因数の和:18356

約数の個数: 32

約数和(自身を含む): 400287744

約数和(自身を除く): 182416426

約数列:

[1, 2, 7, 14, 23, 37, 46, 74, 161, 259, 322, 518, 851, 1702, 5957, 11914, 18287, 36574, 128009, 256018, 420601, 676619, 841202, 1353238, 2944207, 4736333, 5888414, 9472666, 15562237, 31124474, 108935659, 217871318]

約数ペア:

[(1, 217871318), (2, 108935659), (7, 31124474), (14, 15562237), (23, 9472666), (37, 5888414), (46, 4736333), (74, 2944207), (161, 1353238), (259, 841202), (322, 676619), (518, 420601), (851, 256018), (1702, 128009), (5957, 36574), (11914, 18287)]