21858616

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3137}}^1$

素因数の和:3223

約数の個数: 32

約数和(自身を含む): 44810640

約数和(自身を除く): 22952024

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 3137, 3484, 6274, 6968, 12548, 25096, 40781, 81562, 163124, 210179, 326248, 420358, 840716, 1681432, 2732327, 5464654, 10929308, 21858616]

約数ペア:

[(1, 21858616), (2, 10929308), (4, 5464654), (8, 2732327), (13, 1681432), (26, 840716), (52, 420358), (67, 326248), (104, 210179), (134, 163124), (268, 81562), (536, 40781), (871, 25096), (1742, 12548), (3137, 6968), (3484, 6274)]