198218241

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^4$

素因数の和:108

約数の個数: 45

約数和(自身を含む): 327257619

約数和(自身を除く): 129039378

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 169, 171, 247, 361, 507, 741, 1083, 1521, 2223, 3211, 3249, 4693, 6859, 9633, 14079, 20577, 28899, 42237, 61009, 61731, 89167, 130321, 183027, 267501, 390963, 549081, 802503, 1159171, 1172889, 1694173, 3477513, 5082519, 10432539, 15247557, 22024249, 66072747, 198218241]

約数ペア:

[(1, 198218241), (3, 66072747), (9, 22024249), (13, 15247557), (19, 10432539), (39, 5082519), (57, 3477513), (117, 1694173), (169, 1172889), (171, 1159171), (247, 802503), (361, 549081), (507, 390963), (741, 267501), (1083, 183027), (1521, 130321), (2223, 89167), (3211, 61731), (3249, 61009), (4693, 42237), (6859, 28899), (9633, 20577)]