16402581

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:483

約数の個数: 40

約数和(自身を含む): 27164984

約数和(自身を除く): 10762403

約数列:

[1, 3, 9, 13, 27, 37, 39, 81, 111, 117, 333, 351, 421, 481, 999, 1053, 1263, 1443, 2997, 3789, 4329, 5473, 11367, 12987, 15577, 16419, 34101, 38961, 46731, 49257, 140193, 147771, 202501, 420579, 443313, 607503, 1261737, 1822509, 5467527, 16402581]

約数ペア:

[(1, 16402581), (3, 5467527), (9, 1822509), (13, 1261737), (27, 607503), (37, 443313), (39, 420579), (81, 202501), (111, 147771), (117, 140193), (333, 49257), (351, 46731), (421, 38961), (481, 34101), (999, 16419), (1053, 15577), (1263, 12987), (1443, 11367), (2997, 5473), (3789, 4329)]