21637860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7673}}^1$

素因数の和:7732

約数の個数: 48

約数和(自身を含む): 61883136

約数和(自身を除く): 40245276

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, 7673, 15346, 23019, 30692, 38365, 46038, 76730, 92076, 115095, 153460, 230190, 360631, 460380, 721262, 1081893, 1442524, 1803155, 2163786, 3606310, 4327572, 5409465, 7212620, 10818930, 21637860]

約数ペア:

[(1, 21637860), (2, 10818930), (3, 7212620), (4, 5409465), (5, 4327572), (6, 3606310), (10, 2163786), (12, 1803155), (15, 1442524), (20, 1081893), (30, 721262), (47, 460380), (60, 360631), (94, 230190), (141, 153460), (188, 115095), (235, 92076), (282, 76730), (470, 46038), (564, 38365), (705, 30692), (940, 23019), (1410, 15346), (2820, 7673)]