20802435

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1553}}^1$

素因数の和:1627

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 15001725

約数列:

[1, 3, 5, 15, 19, 47, 57, 95, 141, 235, 285, 705, 893, 1553, 2679, 4465, 4659, 7765, 13395, 23295, 29507, 72991, 88521, 147535, 218973, 364955, 442605, 1094865, 1386829, 4160487, 6934145, 20802435]

約数ペア:

[(1, 20802435), (3, 6934145), (5, 4160487), (15, 1386829), (19, 1094865), (47, 442605), (57, 364955), (95, 218973), (141, 147535), (235, 88521), (285, 72991), (705, 29507), (893, 23295), (1553, 13395), (2679, 7765), (4465, 4659)]