206979777

素因数分解:

$3^2\times {\mathrm{17}}^3\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 330071040

約数和(自身を除く): 123091263

約数列:

[1, 3, 9, 17, 31, 51, 93, 151, 153, 279, 289, 453, 527, 867, 1359, 1581, 2567, 2601, 4681, 4743, 4913, 7701, 8959, 14043, 14739, 23103, 26877, 42129, 43639, 44217, 79577, 80631, 130917, 152303, 238731, 392751, 456909, 716193, 741863, 1352809, 1370727, 2225589, 4058427, 6676767, 12175281, 22997753, 68993259, 206979777]

約数ペア:

[(1, 206979777), (3, 68993259), (9, 22997753), (17, 12175281), (31, 6676767), (51, 4058427), (93, 2225589), (151, 1370727), (153, 1352809), (279, 741863), (289, 716193), (453, 456909), (527, 392751), (867, 238731), (1359, 152303), (1581, 130917), (2567, 80631), (2601, 79577), (4681, 44217), (4743, 43639), (4913, 42129), (7701, 26877), (8959, 23103), (14043, 14739)]