21815284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{541}}^1\times {\mathrm{593}}^1$

素因数の和:1155

約数の個数: 24

約数和(自身を含む): 40565448

約数和(自身を除く): 18750164

約数列:

[1, 2, 4, 17, 34, 68, 541, 593, 1082, 1186, 2164, 2372, 9197, 10081, 18394, 20162, 36788, 40324, 320813, 641626, 1283252, 5453821, 10907642, 21815284]

約数ペア:

[(1, 21815284), (2, 10907642), (4, 5453821), (17, 1283252), (34, 641626), (68, 320813), (541, 40324), (593, 36788), (1082, 20162), (1186, 18394), (2164, 10081), (2372, 9197)]