19809296

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{727}}^1$

素因数の和:879

約数の個数: 40

約数和(自身を含む): 41705664

約数和(自身を除く): 21896368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 131, 208, 262, 524, 727, 1048, 1454, 1703, 2096, 2908, 3406, 5816, 6812, 9451, 11632, 13624, 18902, 27248, 37804, 75608, 95237, 151216, 190474, 380948, 761896, 1238081, 1523792, 2476162, 4952324, 9904648, 19809296]

約数ペア:

[(1, 19809296), (2, 9904648), (4, 4952324), (8, 2476162), (13, 1523792), (16, 1238081), (26, 761896), (52, 380948), (104, 190474), (131, 151216), (208, 95237), (262, 75608), (524, 37804), (727, 27248), (1048, 18902), (1454, 13624), (1703, 11632), (2096, 9451), (2908, 6812), (3406, 5816)]