21256609

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 23927040

約数和(自身を除く): 2670431

約数列:

[1, 11, 61, 79, 401, 671, 869, 4411, 4819, 24461, 31679, 53009, 269071, 348469, 1932419, 21256609]

約数ペア:

[(1, 21256609), (11, 1932419), (61, 348469), (79, 269071), (401, 53009), (671, 31679), (869, 24461), (4411, 4819)]