21837620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1033}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 52808448

約数和(自身を除く): 30970828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 1033, 1057, 1510, 2066, 2114, 3020, 4132, 4228, 5165, 5285, 7231, 10330, 10570, 14462, 20660, 21140, 28924, 36155, 72310, 144620, 155983, 311966, 623932, 779915, 1091881, 1559830, 2183762, 3119660, 4367524, 5459405, 10918810, 21837620]

約数ペア:

[(1, 21837620), (2, 10918810), (4, 5459405), (5, 4367524), (7, 3119660), (10, 2183762), (14, 1559830), (20, 1091881), (28, 779915), (35, 623932), (70, 311966), (140, 155983), (151, 144620), (302, 72310), (604, 36155), (755, 28924), (1033, 21140), (1057, 20660), (1510, 14462), (2066, 10570), (2114, 10330), (3020, 7231), (4132, 5285), (4228, 5165)]