21777944

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 41958000

約数和(自身を除く): 20180056

約数列:

[1, 2, 4, 8, 73, 89, 146, 178, 292, 356, 419, 584, 712, 838, 1676, 3352, 6497, 12994, 25988, 30587, 37291, 51976, 61174, 74582, 122348, 149164, 244696, 298328, 2722243, 5444486, 10888972, 21777944]

約数ペア:

[(1, 21777944), (2, 10888972), (4, 5444486), (8, 2722243), (73, 298328), (89, 244696), (146, 149164), (178, 122348), (292, 74582), (356, 61174), (419, 51976), (584, 37291), (712, 30587), (838, 25988), (1676, 12994), (3352, 6497)]