21986021906

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{15641}}^1$

素因数の和:15934

約数の個数: 32

約数和(自身を含む): 34209054000

約数和(自身を除く): 12223032094

約数列:

[1, 2, 53, 89, 106, 149, 178, 298, 4717, 7897, 9434, 13261, 15641, 15794, 26522, 31282, 702833, 828973, 1392049, 1405666, 1657946, 2330509, 2784098, 4661018, 73778597, 123516977, 147557194, 207415301, 247033954, 414830602, 10993010953, 21986021906]

約数ペア:

[(1, 21986021906), (2, 10993010953), (53, 414830602), (89, 247033954), (106, 207415301), (149, 147557194), (178, 123516977), (298, 73778597), (4717, 4661018), (7897, 2784098), (9434, 2330509), (13261, 1657946), (15641, 1405666), (15794, 1392049), (26522, 828973), (31282, 702833)]