21373520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38167}}^1$

素因数の和:38187

約数の個数: 40

約数和(自身を含む): 56793984

約数和(自身を除く): 35420464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38167, 76334, 152668, 190835, 267169, 305336, 381670, 534338, 610672, 763340, 1068676, 1335845, 1526680, 2137352, 2671690, 3053360, 4274704, 5343380, 10686760, 21373520]

約数ペア:

[(1, 21373520), (2, 10686760), (4, 5343380), (5, 4274704), (7, 3053360), (8, 2671690), (10, 2137352), (14, 1526680), (16, 1335845), (20, 1068676), (28, 763340), (35, 610672), (40, 534338), (56, 381670), (70, 305336), (80, 267169), (112, 190835), (140, 152668), (280, 76334), (560, 38167)]