20999152

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42337}}^1$

素因数の和:42376

約数の個数: 20

約数和(自身を含む): 41999296

約数和(自身を除く): 21000144

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42337, 84674, 169348, 338696, 677392, 1312447, 2624894, 5249788, 10499576, 20999152]

約数ペア:

[(1, 20999152), (2, 10499576), (4, 5249788), (8, 2624894), (16, 1312447), (31, 677392), (62, 338696), (124, 169348), (248, 84674), (496, 42337)]