21392254

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 15186050

約数列:

[1, 2, 13, 23, 26, 46, 83, 166, 299, 431, 598, 862, 1079, 1909, 2158, 3818, 5603, 9913, 11206, 19826, 24817, 35773, 49634, 71546, 128869, 257738, 465049, 822779, 930098, 1645558, 10696127, 21392254]

約数ペア:

[(1, 21392254), (2, 10696127), (13, 1645558), (23, 930098), (26, 822779), (46, 465049), (83, 257738), (166, 128869), (299, 71546), (431, 49634), (598, 35773), (862, 24817), (1079, 19826), (1909, 11206), (2158, 9913), (3818, 5603)]