20105613

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 33696000

約数和(自身を除く): 13590387

約数列:

[1, 3, 9, 11, 29, 33, 47, 87, 99, 141, 149, 261, 319, 423, 447, 517, 957, 1341, 1363, 1551, 1639, 2871, 4089, 4321, 4653, 4917, 7003, 12267, 12963, 14751, 14993, 21009, 38889, 44979, 47531, 63027, 77033, 134937, 142593, 203087, 231099, 427779, 609261, 693297, 1827783, 2233957, 6701871, 20105613]

約数ペア:

[(1, 20105613), (3, 6701871), (9, 2233957), (11, 1827783), (29, 693297), (33, 609261), (47, 427779), (87, 231099), (99, 203087), (141, 142593), (149, 134937), (261, 77033), (319, 63027), (423, 47531), (447, 44979), (517, 38889), (957, 21009), (1341, 14993), (1363, 14751), (1551, 12963), (1639, 12267), (2871, 7003), (4089, 4917), (4321, 4653)]