21404056

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{433}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 41559840

約数和(自身を除く): 20155784

約数列:

[1, 2, 4, 8, 37, 74, 148, 167, 296, 334, 433, 668, 866, 1336, 1732, 3464, 6179, 12358, 16021, 24716, 32042, 49432, 64084, 72311, 128168, 144622, 289244, 578488, 2675507, 5351014, 10702028, 21404056]

約数ペア:

[(1, 21404056), (2, 10702028), (4, 5351014), (8, 2675507), (37, 578488), (74, 289244), (148, 144622), (167, 128168), (296, 72311), (334, 64084), (433, 49432), (668, 32042), (866, 24716), (1336, 16021), (1732, 12358), (3464, 6179)]