20955856

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 41961600

約数和(自身を除く): 21005744

約数列:

[1, 2, 4, 8, 16, 59, 79, 118, 158, 236, 281, 316, 472, 562, 632, 944, 1124, 1264, 2248, 4496, 4661, 9322, 16579, 18644, 22199, 33158, 37288, 44398, 66316, 74576, 88796, 132632, 177592, 265264, 355184, 1309741, 2619482, 5238964, 10477928, 20955856]

約数ペア:

[(1, 20955856), (2, 10477928), (4, 5238964), (8, 2619482), (16, 1309741), (59, 355184), (79, 265264), (118, 177592), (158, 132632), (236, 88796), (281, 74576), (316, 66316), (472, 44398), (562, 37288), (632, 33158), (944, 22199), (1124, 18644), (1264, 16579), (2248, 9322), (4496, 4661)]