28948881

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 44190720

約数和(自身を除く): 15241839

約数列:

[1, 3, 13, 23, 39, 59, 69, 177, 299, 547, 767, 897, 1357, 1641, 2301, 4071, 7111, 12581, 17641, 21333, 32273, 37743, 52923, 96819, 163553, 419549, 490659, 742279, 1258647, 2226837, 9649627, 28948881]

約数ペア:

[(1, 28948881), (3, 9649627), (13, 2226837), (23, 1258647), (39, 742279), (59, 490659), (69, 419549), (177, 163553), (299, 96819), (547, 52923), (767, 37743), (897, 32273), (1357, 21333), (1641, 17641), (2301, 12581), (4071, 7111)]