21455564

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1867}}^1$

素因数の和:1914

約数の個数: 36

約数和(自身を含む): 43072344

約数和(自身を除く): 21616780

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1867, 2873, 3734, 5746, 7468, 11492, 24271, 31739, 48542, 63478, 97084, 126956, 315523, 412607, 631046, 825214, 1262092, 1650428, 5363891, 10727782, 21455564]

約数ペア:

[(1, 21455564), (2, 10727782), (4, 5363891), (13, 1650428), (17, 1262092), (26, 825214), (34, 631046), (52, 412607), (68, 315523), (169, 126956), (221, 97084), (338, 63478), (442, 48542), (676, 31739), (884, 24271), (1867, 11492), (2873, 7468), (3734, 5746)]