18748065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 17747295

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 47, 87, 105, 131, 141, 145, 203, 235, 329, 393, 435, 609, 655, 705, 917, 987, 1015, 1363, 1645, 1965, 2751, 3045, 3799, 4089, 4585, 4935, 6157, 6815, 9541, 11397, 13755, 18471, 18995, 20445, 26593, 28623, 30785, 43099, 47705, 56985, 79779, 92355, 129297, 132965, 143115, 178553, 215495, 398895, 535659, 646485, 892765, 1249871, 2678295, 3749613, 6249355, 18748065]

約数ペア:

[(1, 18748065), (3, 6249355), (5, 3749613), (7, 2678295), (15, 1249871), (21, 892765), (29, 646485), (35, 535659), (47, 398895), (87, 215495), (105, 178553), (131, 143115), (141, 132965), (145, 129297), (203, 92355), (235, 79779), (329, 56985), (393, 47705), (435, 43099), (609, 30785), (655, 28623), (705, 26593), (917, 20445), (987, 18995), (1015, 18471), (1363, 13755), (1645, 11397), (1965, 9541), (2751, 6815), (3045, 6157), (3799, 4935), (4089, 4585)]