4407921

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 7840768

約数和(自身を除く): 3432847

約数列:

[1, 3, 7, 9, 21, 31, 37, 61, 63, 93, 111, 183, 217, 259, 279, 333, 427, 549, 651, 777, 1147, 1281, 1891, 1953, 2257, 2331, 3441, 3843, 5673, 6771, 8029, 10323, 13237, 15799, 17019, 20313, 24087, 39711, 47397, 69967, 72261, 119133, 142191, 209901, 489769, 629703, 1469307, 4407921]

約数ペア:

[(1, 4407921), (3, 1469307), (7, 629703), (9, 489769), (21, 209901), (31, 142191), (37, 119133), (61, 72261), (63, 69967), (93, 47397), (111, 39711), (183, 24087), (217, 20313), (259, 17019), (279, 15799), (333, 13237), (427, 10323), (549, 8029), (651, 6771), (777, 5673), (1147, 3843), (1281, 3441), (1891, 2331), (1953, 2257)]