201663405

素因数分解:

$3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{4513}}^1$

素因数の和:4858

約数の個数: 32

約数和(自身を含む): 359675520

約数和(自身を除く): 158012115

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 331, 993, 1655, 2979, 4513, 4965, 8937, 13539, 14895, 22565, 40617, 44685, 67695, 121851, 203085, 609255, 1493803, 4481409, 7469015, 13444227, 22407045, 40332681, 67221135, 201663405]

約数ペア:

[(1, 201663405), (3, 67221135), (5, 40332681), (9, 22407045), (15, 13444227), (27, 7469015), (45, 4481409), (135, 1493803), (331, 609255), (993, 203085), (1655, 121851), (2979, 67695), (4513, 44685), (4965, 40617), (8937, 22565), (13539, 14895)]