20575605

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 33926400

約数和(自身を除く): 13350795

約数列:

[1, 3, 5, 15, 61, 113, 183, 199, 305, 339, 565, 597, 915, 995, 1695, 2985, 6893, 12139, 20679, 22487, 34465, 36417, 60695, 67461, 103395, 112435, 182085, 337305, 1371707, 4115121, 6858535, 20575605]

約数ペア:

[(1, 20575605), (3, 6858535), (5, 4115121), (15, 1371707), (61, 337305), (113, 182085), (183, 112435), (199, 103395), (305, 67461), (339, 60695), (565, 36417), (597, 34465), (915, 22487), (995, 20679), (1695, 12139), (2985, 6893)]