21875763

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{353}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 36158976

約数和(自身を除く): 14283213

約数列:

[1, 3, 7, 13, 21, 39, 91, 227, 273, 353, 681, 1059, 1589, 2471, 2951, 4589, 4767, 7413, 8853, 13767, 20657, 32123, 61971, 80131, 96369, 240393, 560917, 1041703, 1682751, 3125109, 7291921, 21875763]

約数ペア:

[(1, 21875763), (3, 7291921), (7, 3125109), (13, 1682751), (21, 1041703), (39, 560917), (91, 240393), (227, 96369), (273, 80131), (353, 61971), (681, 32123), (1059, 20657), (1589, 13767), (2471, 8853), (2951, 7413), (4589, 4767)]