21085740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9011}}^1$

素因数の和:9039

約数の個数: 72

約数和(自身を含む): 68887728

約数和(自身を除く): 47801988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9011, 18022, 27033, 36044, 45055, 54066, 81099, 90110, 108132, 117143, 135165, 162198, 180220, 234286, 270330, 324396, 351429, 405495, 468572, 540660, 585715, 702858, 810990, 1054287, 1171430, 1405716, 1621980, 1757145, 2108574, 2342860, 3514290, 4217148, 5271435, 7028580, 10542870, 21085740]

約数ペア:

[(1, 21085740), (2, 10542870), (3, 7028580), (4, 5271435), (5, 4217148), (6, 3514290), (9, 2342860), (10, 2108574), (12, 1757145), (13, 1621980), (15, 1405716), (18, 1171430), (20, 1054287), (26, 810990), (30, 702858), (36, 585715), (39, 540660), (45, 468572), (52, 405495), (60, 351429), (65, 324396), (78, 270330), (90, 234286), (117, 180220), (130, 162198), (156, 135165), (180, 117143), (195, 108132), (234, 90110), (260, 81099), (390, 54066), (468, 45055), (585, 36044), (780, 27033), (1170, 18022), (2340, 9011)]