20553255

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 38379744

約数和(自身を除く): 17826489

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 67, 85, 153, 201, 255, 335, 401, 603, 765, 1005, 1139, 1203, 2005, 3015, 3417, 3609, 5695, 6015, 6817, 10251, 17085, 18045, 20451, 26867, 34085, 51255, 61353, 80601, 102255, 134335, 241803, 306765, 403005, 456739, 1209015, 1370217, 2283695, 4110651, 6851085, 20553255]

約数ペア:

[(1, 20553255), (3, 6851085), (5, 4110651), (9, 2283695), (15, 1370217), (17, 1209015), (45, 456739), (51, 403005), (67, 306765), (85, 241803), (153, 134335), (201, 102255), (255, 80601), (335, 61353), (401, 51255), (603, 34085), (765, 26867), (1005, 20451), (1139, 18045), (1203, 17085), (2005, 10251), (3015, 6817), (3417, 6015), (3609, 5695)]