28042371

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7297}}^1$

素因数の和:7371

約数の個数: 24

約数和(自身を含む): 47057504

約数和(自身を除く): 19015133

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 7297, 21891, 51079, 65673, 153237, 445117, 459711, 1335351, 3115819, 4006053, 9347457, 28042371]

約数ペア:

[(1, 28042371), (3, 9347457), (7, 4006053), (9, 3115819), (21, 1335351), (61, 459711), (63, 445117), (183, 153237), (427, 65673), (549, 51079), (1281, 21891), (3843, 7297)]