20119518

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:777

約数の個数: 48

約数和(自身を含む): 46472400

約数和(自身を除く): 26352882

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 89, 114, 171, 178, 267, 342, 534, 661, 801, 1322, 1602, 1691, 1983, 3382, 3966, 5073, 5949, 10146, 11898, 12559, 15219, 25118, 30438, 37677, 58829, 75354, 113031, 117658, 176487, 226062, 352974, 529461, 1058922, 1117751, 2235502, 3353253, 6706506, 10059759, 20119518]

約数ペア:

[(1, 20119518), (2, 10059759), (3, 6706506), (6, 3353253), (9, 2235502), (18, 1117751), (19, 1058922), (38, 529461), (57, 352974), (89, 226062), (114, 176487), (171, 117658), (178, 113031), (267, 75354), (342, 58829), (534, 37677), (661, 30438), (801, 25118), (1322, 15219), (1602, 12559), (1691, 11898), (1983, 10146), (3382, 5949), (3966, 5073)]