21319886

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{487}}^1$

素因数の和:608

約数の個数: 32

約数和(自身を含む): 37946880

約数和(自身を除く): 16626994

約数列:

[1, 2, 7, 14, 53, 59, 106, 118, 371, 413, 487, 742, 826, 974, 3127, 3409, 6254, 6818, 21889, 25811, 28733, 43778, 51622, 57466, 180677, 201131, 361354, 402262, 1522849, 3045698, 10659943, 21319886]

約数ペア:

[(1, 21319886), (2, 10659943), (7, 3045698), (14, 1522849), (53, 402262), (59, 361354), (106, 201131), (118, 180677), (371, 57466), (413, 51622), (487, 43778), (742, 28733), (826, 25811), (974, 21889), (3127, 6818), (3409, 6254)]