21795760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38921}}^1$

素因数の和:38941

約数の個数: 40

約数和(自身を含む): 57915936

約数和(自身を除く): 36120176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38921, 77842, 155684, 194605, 272447, 311368, 389210, 544894, 622736, 778420, 1089788, 1362235, 1556840, 2179576, 2724470, 3113680, 4359152, 5448940, 10897880, 21795760]

約数ペア:

[(1, 21795760), (2, 10897880), (4, 5448940), (5, 4359152), (7, 3113680), (8, 2724470), (10, 2179576), (14, 1556840), (16, 1362235), (20, 1089788), (28, 778420), (35, 622736), (40, 544894), (56, 389210), (70, 311368), (80, 272447), (112, 194605), (140, 155684), (280, 77842), (560, 38921)]