20913744

素因数分解:

$2^4\times 3^1\times {\mathrm{167}}^1\times {\mathrm{2609}}^1$

素因数の和:2787

約数の個数: 40

約数和(自身を含む): 54371520

約数和(自身を除く): 33457776

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 167, 334, 501, 668, 1002, 1336, 2004, 2609, 2672, 4008, 5218, 7827, 8016, 10436, 15654, 20872, 31308, 41744, 62616, 125232, 435703, 871406, 1307109, 1742812, 2614218, 3485624, 5228436, 6971248, 10456872, 20913744]

約数ペア:

[(1, 20913744), (2, 10456872), (3, 6971248), (4, 5228436), (6, 3485624), (8, 2614218), (12, 1742812), (16, 1307109), (24, 871406), (48, 435703), (167, 125232), (334, 62616), (501, 41744), (668, 31308), (1002, 20872), (1336, 15654), (2004, 10436), (2609, 8016), (2672, 7827), (4008, 5218)]