21223089

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 34998912

約数和(自身を除く): 13775823

約数列:

[1, 3, 9, 17, 23, 37, 51, 69, 111, 153, 163, 207, 333, 391, 489, 629, 851, 1173, 1467, 1887, 2553, 2771, 3519, 3749, 5661, 6031, 7659, 8313, 11247, 14467, 18093, 24939, 33741, 43401, 54279, 63733, 102527, 130203, 138713, 191199, 307581, 416139, 573597, 922743, 1248417, 2358121, 7074363, 21223089]

約数ペア:

[(1, 21223089), (3, 7074363), (9, 2358121), (17, 1248417), (23, 922743), (37, 573597), (51, 416139), (69, 307581), (111, 191199), (153, 138713), (163, 130203), (207, 102527), (333, 63733), (391, 54279), (489, 43401), (629, 33741), (851, 24939), (1173, 18093), (1467, 14467), (1887, 11247), (2553, 8313), (2771, 7659), (3519, 6031), (3749, 5661)]