219172149

素因数分解:

$3^5\times 7^2\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 388402560

約数和(自身を除く): 169230411

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 79, 81, 147, 189, 233, 237, 243, 441, 553, 567, 699, 711, 1323, 1631, 1659, 1701, 2097, 2133, 3871, 3969, 4893, 4977, 6291, 6399, 11417, 11613, 11907, 14679, 14931, 18407, 18873, 19197, 34251, 34839, 44037, 44793, 55221, 56619, 102753, 104517, 128849, 132111, 134379, 165663, 308259, 313551, 386547, 396333, 496989, 901943, 924777, 940653, 1159641, 1490967, 2705829, 2774331, 3478923, 4472901, 8117487, 10436769, 24352461, 31310307, 73057383, 219172149]

約数ペア:

[(1, 219172149), (3, 73057383), (7, 31310307), (9, 24352461), (21, 10436769), (27, 8117487), (49, 4472901), (63, 3478923), (79, 2774331), (81, 2705829), (147, 1490967), (189, 1159641), (233, 940653), (237, 924777), (243, 901943), (441, 496989), (553, 396333), (567, 386547), (699, 313551), (711, 308259), (1323, 165663), (1631, 134379), (1659, 132111), (1701, 128849), (2097, 104517), (2133, 102753), (3871, 56619), (3969, 55221), (4893, 44793), (4977, 44037), (6291, 34839), (6399, 34251), (11417, 19197), (11613, 18873), (11907, 18407), (14679, 14931)]