205087239

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 347443200

約数和(自身を除く): 142355961

約数列:

[1, 3, 7, 9, 21, 63, 79, 89, 237, 267, 463, 553, 623, 711, 801, 1389, 1659, 1869, 3241, 4167, 4977, 5607, 7031, 9723, 21093, 29169, 36577, 41207, 49217, 63279, 109731, 123621, 147651, 256039, 288449, 329193, 370863, 442953, 768117, 865347, 2304351, 2596041, 3255353, 9766059, 22787471, 29298177, 68362413, 205087239]

約数ペア:

[(1, 205087239), (3, 68362413), (7, 29298177), (9, 22787471), (21, 9766059), (63, 3255353), (79, 2596041), (89, 2304351), (237, 865347), (267, 768117), (463, 442953), (553, 370863), (623, 329193), (711, 288449), (801, 256039), (1389, 147651), (1659, 123621), (1869, 109731), (3241, 63279), (4167, 49217), (4977, 41207), (5607, 36577), (7031, 29169), (9723, 21093)]