28468503

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:138

約数の個数: 80

約数和(自身を含む): 52968960

約数和(自身を除く): 24500457

約数列:

[1, 3, 7, 9, 21, 23, 27, 37, 59, 63, 69, 81, 111, 161, 177, 189, 207, 259, 333, 413, 483, 531, 567, 621, 777, 851, 999, 1239, 1357, 1449, 1593, 1863, 2183, 2331, 2553, 2997, 3717, 4071, 4347, 4779, 5957, 6549, 6993, 7659, 9499, 11151, 12213, 13041, 15281, 17871, 19647, 20979, 22977, 28497, 33453, 36639, 45843, 50209, 53613, 58941, 68931, 85491, 109917, 137529, 150627, 160839, 176823, 256473, 351463, 412587, 451881, 482517, 769419, 1054389, 1237761, 1355643, 3163167, 4066929, 9489501, 28468503]

約数ペア:

[(1, 28468503), (3, 9489501), (7, 4066929), (9, 3163167), (21, 1355643), (23, 1237761), (27, 1054389), (37, 769419), (59, 482517), (63, 451881), (69, 412587), (81, 351463), (111, 256473), (161, 176823), (177, 160839), (189, 150627), (207, 137529), (259, 109917), (333, 85491), (413, 68931), (483, 58941), (531, 53613), (567, 50209), (621, 45843), (777, 36639), (851, 33453), (999, 28497), (1239, 22977), (1357, 20979), (1449, 19647), (1593, 17871), (1863, 15281), (2183, 13041), (2331, 12213), (2553, 11151), (2997, 9499), (3717, 7659), (4071, 6993), (4347, 6549), (4779, 5957)]