21461250

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:181

約数の個数: 80

約数和(自身を含む): 55107360

約数和(自身を除く): 33646110

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 59, 75, 97, 118, 125, 150, 177, 194, 250, 291, 295, 354, 375, 485, 582, 590, 625, 750, 885, 970, 1250, 1455, 1475, 1770, 1875, 2425, 2910, 2950, 3750, 4425, 4850, 5723, 7275, 7375, 8850, 11446, 12125, 14550, 14750, 17169, 22125, 24250, 28615, 34338, 36375, 36875, 44250, 57230, 60625, 72750, 73750, 85845, 110625, 121250, 143075, 171690, 181875, 221250, 286150, 363750, 429225, 715375, 858450, 1430750, 2146125, 3576875, 4292250, 7153750, 10730625, 21461250]

約数ペア:

[(1, 21461250), (2, 10730625), (3, 7153750), (5, 4292250), (6, 3576875), (10, 2146125), (15, 1430750), (25, 858450), (30, 715375), (50, 429225), (59, 363750), (75, 286150), (97, 221250), (118, 181875), (125, 171690), (150, 143075), (177, 121250), (194, 110625), (250, 85845), (291, 73750), (295, 72750), (354, 60625), (375, 57230), (485, 44250), (582, 36875), (590, 36375), (625, 34338), (750, 28615), (885, 24250), (970, 22125), (1250, 17169), (1455, 14750), (1475, 14550), (1770, 12125), (1875, 11446), (2425, 8850), (2910, 7375), (2950, 7275), (3750, 5723), (4425, 4850)]