21586540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{941}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 48109824

約数和(自身を除く): 26523284

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 941, 1147, 1882, 2294, 3764, 4588, 4705, 5735, 9410, 11470, 18820, 22940, 29171, 34817, 58342, 69634, 116684, 139268, 145855, 174085, 291710, 348170, 583420, 696340, 1079327, 2158654, 4317308, 5396635, 10793270, 21586540]

約数ペア:

[(1, 21586540), (2, 10793270), (4, 5396635), (5, 4317308), (10, 2158654), (20, 1079327), (31, 696340), (37, 583420), (62, 348170), (74, 291710), (124, 174085), (148, 145855), (155, 139268), (185, 116684), (310, 69634), (370, 58342), (620, 34817), (740, 29171), (941, 22940), (1147, 18820), (1882, 11470), (2294, 9410), (3764, 5735), (4588, 4705)]