21901446

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1721}}^1$

素因数の和:1837

約数の個数: 48

約数和(自身を含む): 54800928

約数和(自身を除く): 32899482

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 101, 126, 202, 303, 606, 707, 909, 1414, 1721, 1818, 2121, 3442, 4242, 5163, 6363, 10326, 12047, 12726, 15489, 24094, 30978, 36141, 72282, 108423, 173821, 216846, 347642, 521463, 1042926, 1216747, 1564389, 2433494, 3128778, 3650241, 7300482, 10950723, 21901446]

約数ペア:

[(1, 21901446), (2, 10950723), (3, 7300482), (6, 3650241), (7, 3128778), (9, 2433494), (14, 1564389), (18, 1216747), (21, 1042926), (42, 521463), (63, 347642), (101, 216846), (126, 173821), (202, 108423), (303, 72282), (606, 36141), (707, 30978), (909, 24094), (1414, 15489), (1721, 12726), (1818, 12047), (2121, 10326), (3442, 6363), (4242, 5163)]