621352755

素因数分解:

$3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{17909}}^1$

素因数の和:18180

約数の個数: 32

約数和(自身を含む): 1108987200

約数和(自身を除く): 487634445

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 257, 771, 1285, 2313, 3855, 6939, 11565, 17909, 34695, 53727, 89545, 161181, 268635, 483543, 805905, 2417715, 4602613, 13807839, 23013065, 41423517, 69039195, 124270551, 207117585, 621352755]

約数ペア:

[(1, 621352755), (3, 207117585), (5, 124270551), (9, 69039195), (15, 41423517), (27, 23013065), (45, 13807839), (135, 4602613), (257, 2417715), (771, 805905), (1285, 483543), (2313, 268635), (3855, 161181), (6939, 89545), (11565, 53727), (17909, 34695)]