21451740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7607}}^1$

素因数の和:7666

約数の個数: 48

約数和(自身を含む): 61350912

約数和(自身を除く): 39899172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7607, 15214, 22821, 30428, 38035, 45642, 76070, 91284, 114105, 152140, 228210, 357529, 456420, 715058, 1072587, 1430116, 1787645, 2145174, 3575290, 4290348, 5362935, 7150580, 10725870, 21451740]

約数ペア:

[(1, 21451740), (2, 10725870), (3, 7150580), (4, 5362935), (5, 4290348), (6, 3575290), (10, 2145174), (12, 1787645), (15, 1430116), (20, 1072587), (30, 715058), (47, 456420), (60, 357529), (94, 228210), (141, 152140), (188, 114105), (235, 91284), (282, 76070), (470, 45642), (564, 38035), (705, 30428), (940, 22821), (1410, 15214), (2820, 7607)]