21730870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16339}}^1$

素因数の和:16372

約数の個数: 32

約数和(自身を含む): 47059200

約数和(自身を除く): 25328330

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16339, 32678, 81695, 114373, 163390, 228746, 310441, 571865, 620882, 1143730, 1552205, 2173087, 3104410, 4346174, 10865435, 21730870]

約数ペア:

[(1, 21730870), (2, 10865435), (5, 4346174), (7, 3104410), (10, 2173087), (14, 1552205), (19, 1143730), (35, 620882), (38, 571865), (70, 310441), (95, 228746), (133, 163390), (190, 114373), (266, 81695), (665, 32678), (1330, 16339)]