20976770

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 39315456

約数和(自身を除く): 18338686

約数列:

[1, 2, 5, 10, 31, 62, 155, 157, 310, 314, 431, 785, 862, 1570, 2155, 4310, 4867, 9734, 13361, 24335, 26722, 48670, 66805, 67667, 133610, 135334, 338335, 676670, 2097677, 4195354, 10488385, 20976770]

約数ペア:

[(1, 20976770), (2, 10488385), (5, 4195354), (10, 2097677), (31, 676670), (62, 338335), (155, 135334), (157, 133610), (310, 67667), (314, 66805), (431, 48670), (785, 26722), (862, 24335), (1570, 13361), (2155, 9734), (4310, 4867)]