21496170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 53343360

約数和(自身を除く): 31847190

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 83, 89, 97, 166, 178, 194, 249, 267, 291, 415, 445, 485, 498, 534, 582, 830, 890, 970, 1245, 1335, 1455, 2490, 2670, 2910, 7387, 8051, 8633, 14774, 16102, 17266, 22161, 24153, 25899, 36935, 40255, 43165, 44322, 48306, 51798, 73870, 80510, 86330, 110805, 120765, 129495, 221610, 241530, 258990, 716539, 1433078, 2149617, 3582695, 4299234, 7165390, 10748085, 21496170]

約数ペア:

[(1, 21496170), (2, 10748085), (3, 7165390), (5, 4299234), (6, 3582695), (10, 2149617), (15, 1433078), (30, 716539), (83, 258990), (89, 241530), (97, 221610), (166, 129495), (178, 120765), (194, 110805), (249, 86330), (267, 80510), (291, 73870), (415, 51798), (445, 48306), (485, 44322), (498, 43165), (534, 40255), (582, 36935), (830, 25899), (890, 24153), (970, 22161), (1245, 17266), (1335, 16102), (1455, 14774), (2490, 8633), (2670, 8051), (2910, 7387)]