28509327

素因数分解:

$3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{653}}^1$

素因数の和:690

約数の個数: 60

約数和(自身を含む): 54127656

約数和(自身を除く): 25618329

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 81, 99, 147, 189, 231, 297, 441, 539, 567, 653, 693, 891, 1323, 1617, 1959, 2079, 3969, 4571, 4851, 5877, 6237, 7183, 13713, 14553, 17631, 21549, 31997, 41139, 43659, 50281, 52893, 64647, 95991, 123417, 150843, 193941, 287973, 351967, 370251, 452529, 581823, 863919, 1055901, 1357587, 2591757, 3167703, 4072761, 9503109, 28509327]

約数ペア:

[(1, 28509327), (3, 9503109), (7, 4072761), (9, 3167703), (11, 2591757), (21, 1357587), (27, 1055901), (33, 863919), (49, 581823), (63, 452529), (77, 370251), (81, 351967), (99, 287973), (147, 193941), (189, 150843), (231, 123417), (297, 95991), (441, 64647), (539, 52893), (567, 50281), (653, 43659), (693, 41139), (891, 31997), (1323, 21549), (1617, 17631), (1959, 14553), (2079, 13713), (3969, 7183), (4571, 6237), (4851, 5877)]