21497010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:779

約数の個数: 64

約数和(自身を含む): 55603584

約数和(自身を除く): 34106574

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 61, 85, 102, 122, 170, 183, 255, 305, 366, 510, 610, 691, 915, 1037, 1382, 1830, 2073, 2074, 3111, 3455, 4146, 5185, 6222, 6910, 10365, 10370, 11747, 15555, 20730, 23494, 31110, 35241, 42151, 58735, 70482, 84302, 117470, 126453, 176205, 210755, 252906, 352410, 421510, 632265, 716567, 1264530, 1433134, 2149701, 3582835, 4299402, 7165670, 10748505, 21497010]

約数ペア:

[(1, 21497010), (2, 10748505), (3, 7165670), (5, 4299402), (6, 3582835), (10, 2149701), (15, 1433134), (17, 1264530), (30, 716567), (34, 632265), (51, 421510), (61, 352410), (85, 252906), (102, 210755), (122, 176205), (170, 126453), (183, 117470), (255, 84302), (305, 70482), (366, 58735), (510, 42151), (610, 35241), (691, 31110), (915, 23494), (1037, 20730), (1382, 15555), (1830, 11747), (2073, 10370), (2074, 10365), (3111, 6910), (3455, 6222), (4146, 5185)]