20213895

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4507}}^1$

素因数の和:4551

約数の個数: 32

約数和(自身を含む): 36352512

約数和(自身を除く): 16138617

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4507, 13521, 22535, 58591, 67605, 103661, 175773, 292955, 310983, 518305, 878865, 1347593, 1554915, 4042779, 6737965, 20213895]

約数ペア:

[(1, 20213895), (3, 6737965), (5, 4042779), (13, 1554915), (15, 1347593), (23, 878865), (39, 518305), (65, 310983), (69, 292955), (115, 175773), (195, 103661), (299, 67605), (345, 58591), (897, 22535), (1495, 13521), (4485, 4507)]