21533556

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4409}}^1$

素因数の和:4464

約数の個数: 48

約数和(自身を含む): 56306880

約数和(自身を除く): 34773324

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 37, 44, 66, 74, 111, 132, 148, 222, 407, 444, 814, 1221, 1628, 2442, 4409, 4884, 8818, 13227, 17636, 26454, 48499, 52908, 96998, 145497, 163133, 193996, 290994, 326266, 489399, 581988, 652532, 978798, 1794463, 1957596, 3588926, 5383389, 7177852, 10766778, 21533556]

約数ペア:

[(1, 21533556), (2, 10766778), (3, 7177852), (4, 5383389), (6, 3588926), (11, 1957596), (12, 1794463), (22, 978798), (33, 652532), (37, 581988), (44, 489399), (66, 326266), (74, 290994), (111, 193996), (132, 163133), (148, 145497), (222, 96998), (407, 52908), (444, 48499), (814, 26454), (1221, 17636), (1628, 13227), (2442, 8818), (4409, 4884)]