21822515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1327}}^1$

素因数の和:1379

約数の個数: 32

約数和(自身を含む): 32126976

約数和(自身を除く): 10304461

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1265, 1327, 1495, 3289, 6635, 14597, 16445, 17251, 30521, 72985, 86255, 152605, 189761, 335731, 396773, 948805, 1678655, 1983865, 4364503, 21822515]

約数ペア:

[(1, 21822515), (5, 4364503), (11, 1983865), (13, 1678655), (23, 948805), (55, 396773), (65, 335731), (115, 189761), (143, 152605), (253, 86255), (299, 72985), (715, 30521), (1265, 17251), (1327, 16445), (1495, 14597), (3289, 6635)]