21159597

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 31129600

約数和(自身を除く): 9970003

約数列:

[1, 3, 19, 37, 57, 79, 111, 127, 237, 381, 703, 1501, 2109, 2413, 2923, 4503, 4699, 7239, 8769, 10033, 14097, 30099, 55537, 89281, 166611, 190627, 267843, 371221, 571881, 1113663, 7053199, 21159597]

約数ペア:

[(1, 21159597), (3, 7053199), (19, 1113663), (37, 571881), (57, 371221), (79, 267843), (111, 190627), (127, 166611), (237, 89281), (381, 55537), (703, 30099), (1501, 14097), (2109, 10033), (2413, 8769), (2923, 7239), (4503, 4699)]