21471273

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{409}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 32832800

約数和(自身を除く): 11361527

約数列:

[1, 3, 9, 19, 57, 171, 307, 409, 921, 1227, 2763, 3681, 5833, 7771, 17499, 23313, 52497, 69939, 125563, 376689, 1130067, 2385697, 7157091, 21471273]

約数ペア:

[(1, 21471273), (3, 7157091), (9, 2385697), (19, 1130067), (57, 376689), (171, 125563), (307, 69939), (409, 52497), (921, 23313), (1227, 17499), (2763, 7771), (3681, 5833)]