21987930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4919}}^1$

素因数の和:5078

約数の個数: 32

約数和(自身を含む): 53136000

約数和(自身を除く): 31148070

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 149, 298, 447, 745, 894, 1490, 2235, 4470, 4919, 9838, 14757, 24595, 29514, 49190, 73785, 147570, 732931, 1465862, 2198793, 3664655, 4397586, 7329310, 10993965, 21987930]

約数ペア:

[(1, 21987930), (2, 10993965), (3, 7329310), (5, 4397586), (6, 3664655), (10, 2198793), (15, 1465862), (30, 732931), (149, 147570), (298, 73785), (447, 49190), (745, 29514), (894, 24595), (1490, 14757), (2235, 9838), (4470, 4919)]