21815144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4463}}^1$

素因数の和:4529

約数の個数: 32

約数和(自身を含む): 44997120

約数和(自身を除く): 23181976

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4463, 4888, 8926, 17852, 35704, 58019, 116038, 209761, 232076, 419522, 464152, 839044, 1678088, 2726893, 5453786, 10907572, 21815144]

約数ペア:

[(1, 21815144), (2, 10907572), (4, 5453786), (8, 2726893), (13, 1678088), (26, 839044), (47, 464152), (52, 419522), (94, 232076), (104, 209761), (188, 116038), (376, 58019), (611, 35704), (1222, 17852), (2444, 8926), (4463, 4888)]