21356562

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 43856640

約数和(自身を除く): 22500078

約数列:

[1, 2, 3, 6, 53, 106, 159, 239, 281, 318, 478, 562, 717, 843, 1434, 1686, 12667, 14893, 25334, 29786, 38001, 44679, 67159, 76002, 89358, 134318, 201477, 402954, 3559427, 7118854, 10678281, 21356562]

約数ペア:

[(1, 21356562), (2, 10678281), (3, 7118854), (6, 3559427), (53, 402954), (106, 201477), (159, 134318), (239, 89358), (281, 76002), (318, 67159), (478, 44679), (562, 38001), (717, 29786), (843, 25334), (1434, 14893), (1686, 12667)]