21485730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1013}}^1$

素因数の和:1131

約数の個数: 64

約数和(自身を含む): 59574528

約数和(自身を除く): 38088798

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 101, 105, 202, 210, 303, 505, 606, 707, 1010, 1013, 1414, 1515, 2026, 2121, 3030, 3039, 3535, 4242, 5065, 6078, 7070, 7091, 10130, 10605, 14182, 15195, 21210, 21273, 30390, 35455, 42546, 70910, 102313, 106365, 204626, 212730, 306939, 511565, 613878, 716191, 1023130, 1432382, 1534695, 2148573, 3069390, 3580955, 4297146, 7161910, 10742865, 21485730]

約数ペア:

[(1, 21485730), (2, 10742865), (3, 7161910), (5, 4297146), (6, 3580955), (7, 3069390), (10, 2148573), (14, 1534695), (15, 1432382), (21, 1023130), (30, 716191), (35, 613878), (42, 511565), (70, 306939), (101, 212730), (105, 204626), (202, 106365), (210, 102313), (303, 70910), (505, 42546), (606, 35455), (707, 30390), (1010, 21273), (1013, 21210), (1414, 15195), (1515, 14182), (2026, 10605), (2121, 10130), (3030, 7091), (3039, 7070), (3535, 6078), (4242, 5065)]