21173984

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2213}}^1$

素因数の和:2259

約数の個数: 48

約数和(自身を含む): 46865952

約数和(自身を除く): 25691968

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 92, 104, 184, 208, 299, 368, 416, 598, 736, 1196, 2213, 2392, 4426, 4784, 8852, 9568, 17704, 28769, 35408, 50899, 57538, 70816, 101798, 115076, 203596, 230152, 407192, 460304, 661687, 814384, 920608, 1323374, 1628768, 2646748, 5293496, 10586992, 21173984]

約数ペア:

[(1, 21173984), (2, 10586992), (4, 5293496), (8, 2646748), (13, 1628768), (16, 1323374), (23, 920608), (26, 814384), (32, 661687), (46, 460304), (52, 407192), (92, 230152), (104, 203596), (184, 115076), (208, 101798), (299, 70816), (368, 57538), (416, 50899), (598, 35408), (736, 28769), (1196, 17704), (2213, 9568), (2392, 8852), (4426, 4784)]