28330641

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 45811584

約数和(自身を除く): 17480943

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 111, 137, 207, 243, 333, 411, 621, 851, 999, 1233, 1863, 2553, 2997, 3151, 3699, 5069, 5589, 7659, 8991, 9453, 11097, 15207, 22977, 28359, 33291, 45621, 68931, 85077, 116587, 136863, 206793, 255231, 349761, 410589, 765693, 1049283, 1231767, 3147849, 9443547, 28330641]

約数ペア:

[(1, 28330641), (3, 9443547), (9, 3147849), (23, 1231767), (27, 1049283), (37, 765693), (69, 410589), (81, 349761), (111, 255231), (137, 206793), (207, 136863), (243, 116587), (333, 85077), (411, 68931), (621, 45621), (851, 33291), (999, 28359), (1233, 22977), (1863, 15207), (2553, 11097), (2997, 9453), (3151, 8991), (3699, 7659), (5069, 5589)]