21848365

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^3\times {\mathrm{67}}^1$

素因数の和:119

約数の個数: 48

約数和(自身を含む): 34046784

約数和(自身を除く): 12198419

約数列:

[1, 5, 7, 11, 35, 49, 55, 67, 77, 121, 245, 335, 385, 469, 539, 605, 737, 847, 1331, 2345, 2695, 3283, 3685, 4235, 5159, 5929, 6655, 8107, 9317, 16415, 25795, 29645, 36113, 40535, 46585, 56749, 65219, 89177, 180565, 283745, 326095, 397243, 445885, 624239, 1986215, 3121195, 4369673, 21848365]

約数ペア:

[(1, 21848365), (5, 4369673), (7, 3121195), (11, 1986215), (35, 624239), (49, 445885), (55, 397243), (67, 326095), (77, 283745), (121, 180565), (245, 89177), (335, 65219), (385, 56749), (469, 46585), (539, 40535), (605, 36113), (737, 29645), (847, 25795), (1331, 16415), (2345, 9317), (2695, 8107), (3283, 6655), (3685, 5929), (4235, 5159)]