21860090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 25141510

約数列:

[1, 2, 5, 7, 10, 14, 35, 59, 67, 70, 79, 118, 134, 158, 295, 335, 395, 413, 469, 553, 590, 670, 790, 826, 938, 1106, 2065, 2345, 2765, 3953, 4130, 4661, 4690, 5293, 5530, 7906, 9322, 10586, 19765, 23305, 26465, 27671, 32627, 37051, 39530, 46610, 52930, 55342, 65254, 74102, 138355, 163135, 185255, 276710, 312287, 326270, 370510, 624574, 1561435, 2186009, 3122870, 4372018, 10930045, 21860090]

約数ペア:

[(1, 21860090), (2, 10930045), (5, 4372018), (7, 3122870), (10, 2186009), (14, 1561435), (35, 624574), (59, 370510), (67, 326270), (70, 312287), (79, 276710), (118, 185255), (134, 163135), (158, 138355), (295, 74102), (335, 65254), (395, 55342), (413, 52930), (469, 46610), (553, 39530), (590, 37051), (670, 32627), (790, 27671), (826, 26465), (938, 23305), (1106, 19765), (2065, 10586), (2345, 9322), (2765, 7906), (3953, 5530), (4130, 5293), (4661, 4690)]