21393718

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 13987082

約数列:

[1, 2, 17, 34, 41, 82, 103, 149, 206, 298, 697, 1394, 1751, 2533, 3502, 4223, 5066, 6109, 8446, 12218, 15347, 30694, 71791, 103853, 143582, 207706, 260899, 521798, 629227, 1258454, 10696859, 21393718]

約数ペア:

[(1, 21393718), (2, 10696859), (17, 1258454), (34, 629227), (41, 521798), (82, 260899), (103, 207706), (149, 143582), (206, 103853), (298, 71791), (697, 30694), (1394, 15347), (1751, 12218), (2533, 8446), (3502, 6109), (4223, 5066)]