20792247

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 32686080

約数和(自身を除く): 11893833

約数列:

[1, 3, 7, 21, 79, 83, 151, 237, 249, 453, 553, 581, 1057, 1659, 1743, 3171, 6557, 11929, 12533, 19671, 35787, 37599, 45899, 83503, 87731, 137697, 250509, 263193, 990107, 2970321, 6930749, 20792247]

約数ペア:

[(1, 20792247), (3, 6930749), (7, 2970321), (21, 990107), (79, 263193), (83, 250509), (151, 137697), (237, 87731), (249, 83503), (453, 45899), (553, 37599), (581, 35787), (1057, 19671), (1659, 12533), (1743, 11929), (3171, 6557)]