21301840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38039}}^1$

素因数の和:38059

約数の個数: 40

約数和(自身を含む): 56603520

約数和(自身を除く): 35301680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38039, 76078, 152156, 190195, 266273, 304312, 380390, 532546, 608624, 760780, 1065092, 1331365, 1521560, 2130184, 2662730, 3043120, 4260368, 5325460, 10650920, 21301840]

約数ペア:

[(1, 21301840), (2, 10650920), (4, 5325460), (5, 4260368), (7, 3043120), (8, 2662730), (10, 2130184), (14, 1521560), (16, 1331365), (20, 1065092), (28, 760780), (35, 608624), (40, 532546), (56, 380390), (70, 304312), (80, 266273), (112, 190195), (140, 152156), (280, 76078), (560, 38039)]