21542536

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 24180344

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 71, 92, 97, 136, 142, 184, 194, 284, 388, 391, 568, 776, 782, 1207, 1564, 1633, 1649, 2231, 2414, 3128, 3266, 3298, 4462, 4828, 6532, 6596, 6887, 8924, 9656, 13064, 13192, 13774, 17848, 27548, 27761, 37927, 55096, 55522, 75854, 111044, 117079, 151708, 158401, 222088, 234158, 303416, 316802, 468316, 633604, 936632, 1267208, 2692817, 5385634, 10771268, 21542536]

約数ペア:

[(1, 21542536), (2, 10771268), (4, 5385634), (8, 2692817), (17, 1267208), (23, 936632), (34, 633604), (46, 468316), (68, 316802), (71, 303416), (92, 234158), (97, 222088), (136, 158401), (142, 151708), (184, 117079), (194, 111044), (284, 75854), (388, 55522), (391, 55096), (568, 37927), (776, 27761), (782, 27548), (1207, 17848), (1564, 13774), (1633, 13192), (1649, 13064), (2231, 9656), (2414, 8924), (3128, 6887), (3266, 6596), (3298, 6532), (4462, 4828)]