21274020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118189}}^1$

素因数の和:118204

約数の個数: 36

約数和(自身を含む): 64531740

約数和(自身を除く): 43257720

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118189, 236378, 354567, 472756, 590945, 709134, 1063701, 1181890, 1418268, 1772835, 2127402, 2363780, 3545670, 4254804, 5318505, 7091340, 10637010, 21274020]

約数ペア:

[(1, 21274020), (2, 10637010), (3, 7091340), (4, 5318505), (5, 4254804), (6, 3545670), (9, 2363780), (10, 2127402), (12, 1772835), (15, 1418268), (18, 1181890), (20, 1063701), (30, 709134), (36, 590945), (45, 472756), (60, 354567), (90, 236378), (180, 118189)]