21390304

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51419}}^1$

素因数の和:51442

約数の個数: 24

約数和(自身を含む): 45352440

約数和(自身を除く): 23962136

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51419, 102838, 205676, 411352, 668447, 822704, 1336894, 1645408, 2673788, 5347576, 10695152, 21390304]

約数ペア:

[(1, 21390304), (2, 10695152), (4, 5347576), (8, 2673788), (13, 1645408), (16, 1336894), (26, 822704), (32, 668447), (52, 411352), (104, 205676), (208, 102838), (416, 51419)]