20996821328

素因数分解:

$2^4\times 7^1\times {\mathrm{18143}}^1\times {\mathrm{10333}}^1$

素因数の和:28491

約数の個数: 40

約数和(自身を含む): 46500023808

約数和(自身を除く): 25503202480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 10333, 18143, 20666, 36286, 41332, 72331, 72572, 82664, 127001, 144662, 145144, 165328, 254002, 289324, 290288, 508004, 578648, 1016008, 1157296, 2032016, 187471619, 374943238, 749886476, 1312301333, 1499772952, 2624602666, 2999545904, 5249205332, 10498410664, 20996821328]

約数ペア:

[(1, 20996821328), (2, 10498410664), (4, 5249205332), (7, 2999545904), (8, 2624602666), (14, 1499772952), (16, 1312301333), (28, 749886476), (56, 374943238), (112, 187471619), (10333, 2032016), (18143, 1157296), (20666, 1016008), (36286, 578648), (41332, 508004), (72331, 290288), (72572, 289324), (82664, 254002), (127001, 165328), (144662, 145144)]