21711540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15733}}^1$

素因数の和:15768

約数の個数: 48

約数和(自身を含む): 63439488

約数和(自身を除く): 41727948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15733, 31466, 47199, 62932, 78665, 94398, 157330, 188796, 235995, 314660, 361859, 471990, 723718, 943980, 1085577, 1447436, 1809295, 2171154, 3618590, 4342308, 5427885, 7237180, 10855770, 21711540]

約数ペア:

[(1, 21711540), (2, 10855770), (3, 7237180), (4, 5427885), (5, 4342308), (6, 3618590), (10, 2171154), (12, 1809295), (15, 1447436), (20, 1085577), (23, 943980), (30, 723718), (46, 471990), (60, 361859), (69, 314660), (92, 235995), (115, 188796), (138, 157330), (230, 94398), (276, 78665), (345, 62932), (460, 47199), (690, 31466), (1380, 15733)]