221489156

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{416333}}^1$

素因数の和:416363

約数の個数: 24

約数和(自身を含む): 466294080

約数和(自身を除く): 244804924

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 416333, 832666, 1665332, 2914331, 5828662, 7910327, 11657324, 15820654, 31641308, 55372289, 110744578, 221489156]

約数ペア:

[(1, 221489156), (2, 110744578), (4, 55372289), (7, 31641308), (14, 15820654), (19, 11657324), (28, 7910327), (38, 5828662), (76, 2914331), (133, 1665332), (266, 832666), (532, 416333)]