21292089

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3391}}^1$

素因数の和:3437

約数の個数: 32

約数和(自身を含む): 36470784

約数和(自身を除く): 15178695

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 3391, 6279, 10173, 23737, 44083, 71211, 77993, 132249, 233979, 308581, 545951, 925743, 1013909, 1637853, 3041727, 7097363, 21292089]

約数ペア:

[(1, 21292089), (3, 7097363), (7, 3041727), (13, 1637853), (21, 1013909), (23, 925743), (39, 545951), (69, 308581), (91, 233979), (161, 132249), (273, 77993), (299, 71211), (483, 44083), (897, 23737), (2093, 10173), (3391, 6279)]