221411512

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 485222400

約数和(自身を除く): 263810888

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 233, 239, 284, 466, 478, 497, 568, 932, 956, 994, 1631, 1673, 1864, 1912, 1988, 3262, 3346, 3976, 6524, 6692, 13048, 13384, 16543, 16969, 33086, 33938, 55687, 66172, 67876, 111374, 115801, 118783, 132344, 135752, 222748, 231602, 237566, 389809, 445496, 463204, 475132, 779618, 926408, 950264, 1559236, 3118472, 3953777, 7907554, 15815108, 27676439, 31630216, 55352878, 110705756, 221411512]

約数ペア:

[(1, 221411512), (2, 110705756), (4, 55352878), (7, 31630216), (8, 27676439), (14, 15815108), (28, 7907554), (56, 3953777), (71, 3118472), (142, 1559236), (233, 950264), (239, 926408), (284, 779618), (466, 475132), (478, 463204), (497, 445496), (568, 389809), (932, 237566), (956, 231602), (994, 222748), (1631, 135752), (1673, 132344), (1864, 118783), (1912, 115801), (1988, 111374), (3262, 67876), (3346, 66172), (3976, 55687), (6524, 33938), (6692, 33086), (13048, 16969), (13384, 16543)]