21286860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50683}}^1$

素因数の和:50702

約数の個数: 48

約数和(自身を含む): 68119296

約数和(自身を除く): 46832436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50683, 101366, 152049, 202732, 253415, 304098, 354781, 506830, 608196, 709562, 760245, 1013660, 1064343, 1419124, 1520490, 1773905, 2128686, 3040980, 3547810, 4257372, 5321715, 7095620, 10643430, 21286860]

約数ペア:

[(1, 21286860), (2, 10643430), (3, 7095620), (4, 5321715), (5, 4257372), (6, 3547810), (7, 3040980), (10, 2128686), (12, 1773905), (14, 1520490), (15, 1419124), (20, 1064343), (21, 1013660), (28, 760245), (30, 709562), (35, 608196), (42, 506830), (60, 354781), (70, 304098), (84, 253415), (105, 202732), (140, 152049), (210, 101366), (420, 50683)]