21203361

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 31630560

約数和(自身を除く): 10427199

約数列:

[1, 3, 9, 59, 73, 177, 219, 531, 547, 657, 1641, 4307, 4923, 12921, 32273, 38763, 39931, 96819, 119793, 290457, 359379, 2355929, 7067787, 21203361]

約数ペア:

[(1, 21203361), (3, 7067787), (9, 2355929), (59, 359379), (73, 290457), (177, 119793), (219, 96819), (531, 39931), (547, 38763), (657, 32273), (1641, 12921), (4307, 4923)]