21277890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:369

約数の個数: 80

約数和(自身を含む): 57978360

約数和(自身を除く): 36700470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 109, 135, 162, 218, 241, 270, 327, 405, 482, 545, 654, 723, 810, 981, 1090, 1205, 1446, 1635, 1962, 2169, 2410, 2943, 3270, 3615, 4338, 4905, 5886, 6507, 7230, 8829, 9810, 10845, 13014, 14715, 17658, 19521, 21690, 26269, 29430, 32535, 39042, 44145, 52538, 65070, 78807, 88290, 97605, 131345, 157614, 195210, 236421, 262690, 394035, 472842, 709263, 788070, 1182105, 1418526, 2127789, 2364210, 3546315, 4255578, 7092630, 10638945, 21277890]

約数ペア:

[(1, 21277890), (2, 10638945), (3, 7092630), (5, 4255578), (6, 3546315), (9, 2364210), (10, 2127789), (15, 1418526), (18, 1182105), (27, 788070), (30, 709263), (45, 472842), (54, 394035), (81, 262690), (90, 236421), (109, 195210), (135, 157614), (162, 131345), (218, 97605), (241, 88290), (270, 78807), (327, 65070), (405, 52538), (482, 44145), (545, 39042), (654, 32535), (723, 29430), (810, 26269), (981, 21690), (1090, 19521), (1205, 17658), (1446, 14715), (1635, 13014), (1962, 10845), (2169, 9810), (2410, 8829), (2943, 7230), (3270, 6507), (3615, 5886), (4338, 4905)]