257268837

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{13597}}^1$

素因数の和:13677

約数の個数: 32

約数和(自身を含む): 422952192

約数和(自身を除く): 165683355

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 159, 357, 371, 901, 1113, 2703, 6307, 13597, 18921, 40791, 95179, 231149, 285537, 693447, 720641, 1618043, 2161923, 4854129, 5044487, 12250897, 15133461, 36752691, 85756279, 257268837]

約数ペア:

[(1, 257268837), (3, 85756279), (7, 36752691), (17, 15133461), (21, 12250897), (51, 5044487), (53, 4854129), (119, 2161923), (159, 1618043), (357, 720641), (371, 693447), (901, 285537), (1113, 231149), (2703, 95179), (6307, 40791), (13597, 18921)]