20324745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{571}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 40689792

約数和(自身を除く): 20365047

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 113, 315, 339, 565, 571, 791, 1017, 1695, 1713, 2373, 2855, 3955, 3997, 5085, 5139, 7119, 8565, 11865, 11991, 19985, 25695, 35595, 35973, 59955, 64523, 179865, 193569, 322615, 451661, 580707, 967845, 1354983, 2258305, 2903535, 4064949, 6774915, 20324745]

約数ペア:

[(1, 20324745), (3, 6774915), (5, 4064949), (7, 2903535), (9, 2258305), (15, 1354983), (21, 967845), (35, 580707), (45, 451661), (63, 322615), (105, 193569), (113, 179865), (315, 64523), (339, 59955), (565, 35973), (571, 35595), (791, 25695), (1017, 19985), (1695, 11991), (1713, 11865), (2373, 8565), (2855, 7119), (3955, 5139), (3997, 5085)]