28209974

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 46992960

約数和(自身を除く): 18782986

約数列:

[1, 2, 13, 26, 73, 89, 146, 167, 178, 334, 949, 1157, 1898, 2171, 2314, 4342, 6497, 12191, 12994, 14863, 24382, 29726, 84461, 158483, 168922, 193219, 316966, 386438, 1084999, 2169998, 14104987, 28209974]

約数ペア:

[(1, 28209974), (2, 14104987), (13, 2169998), (26, 1084999), (73, 386438), (89, 316966), (146, 193219), (167, 168922), (178, 158483), (334, 84461), (949, 29726), (1157, 24382), (1898, 14863), (2171, 12994), (2314, 12191), (4342, 6497)]