21952619

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:171

約数の個数: 32

約数和(自身を含む): 26664960

約数和(自身を除く): 4712341

約数列:

[1, 13, 19, 31, 47, 61, 247, 403, 589, 611, 793, 893, 1159, 1457, 1891, 2867, 7657, 11609, 15067, 18941, 24583, 27683, 35929, 37271, 54473, 88877, 359879, 467077, 708149, 1155401, 1688663, 21952619]

約数ペア:

[(1, 21952619), (13, 1688663), (19, 1155401), (31, 708149), (47, 467077), (61, 359879), (247, 88877), (403, 54473), (589, 37271), (611, 35929), (793, 27683), (893, 24583), (1159, 18941), (1457, 15067), (1891, 11609), (2867, 7657)]