20619352

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 42558480

約数和(自身を除く): 21939128

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 151, 169, 202, 302, 338, 404, 604, 676, 808, 1208, 1313, 1352, 1963, 2626, 3926, 5252, 7852, 10504, 15251, 15704, 17069, 25519, 30502, 34138, 51038, 61004, 68276, 102076, 122008, 136552, 198263, 204152, 396526, 793052, 1586104, 2577419, 5154838, 10309676, 20619352]

約数ペア:

[(1, 20619352), (2, 10309676), (4, 5154838), (8, 2577419), (13, 1586104), (26, 793052), (52, 396526), (101, 204152), (104, 198263), (151, 136552), (169, 122008), (202, 102076), (302, 68276), (338, 61004), (404, 51038), (604, 34138), (676, 30502), (808, 25519), (1208, 17069), (1313, 15704), (1352, 15251), (1963, 10504), (2626, 7852), (3926, 5252)]