21850740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{521}}^1$

素因数の和:769

約数の個数: 72

約数和(自身を含む): 66692808

約数和(自身を除く): 44842068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 233, 466, 521, 699, 932, 1042, 1165, 1398, 1563, 2084, 2097, 2330, 2605, 2796, 3126, 3495, 4194, 4660, 4689, 5210, 6252, 6990, 7815, 8388, 9378, 10420, 10485, 13980, 15630, 18756, 20970, 23445, 31260, 41940, 46890, 93780, 121393, 242786, 364179, 485572, 606965, 728358, 1092537, 1213930, 1456716, 1820895, 2185074, 2427860, 3641790, 4370148, 5462685, 7283580, 10925370, 21850740]

約数ペア:

[(1, 21850740), (2, 10925370), (3, 7283580), (4, 5462685), (5, 4370148), (6, 3641790), (9, 2427860), (10, 2185074), (12, 1820895), (15, 1456716), (18, 1213930), (20, 1092537), (30, 728358), (36, 606965), (45, 485572), (60, 364179), (90, 242786), (180, 121393), (233, 93780), (466, 46890), (521, 41940), (699, 31260), (932, 23445), (1042, 20970), (1165, 18756), (1398, 15630), (1563, 13980), (2084, 10485), (2097, 10420), (2330, 9378), (2605, 8388), (2796, 7815), (3126, 6990), (3495, 6252), (4194, 5210), (4660, 4689)]