21358440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{751}}^1$

素因数の和:847

約数の個数: 96

約数和(自身を含む): 70387200

約数和(自身を除く): 49028760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 79, 90, 120, 158, 180, 237, 316, 360, 395, 474, 632, 711, 751, 790, 948, 1185, 1422, 1502, 1580, 1896, 2253, 2370, 2844, 3004, 3160, 3555, 3755, 4506, 4740, 5688, 6008, 6759, 7110, 7510, 9012, 9480, 11265, 13518, 14220, 15020, 18024, 22530, 27036, 28440, 30040, 33795, 45060, 54072, 59329, 67590, 90120, 118658, 135180, 177987, 237316, 270360, 296645, 355974, 474632, 533961, 593290, 711948, 889935, 1067922, 1186580, 1423896, 1779870, 2135844, 2373160, 2669805, 3559740, 4271688, 5339610, 7119480, 10679220, 21358440]

約数ペア:

[(1, 21358440), (2, 10679220), (3, 7119480), (4, 5339610), (5, 4271688), (6, 3559740), (8, 2669805), (9, 2373160), (10, 2135844), (12, 1779870), (15, 1423896), (18, 1186580), (20, 1067922), (24, 889935), (30, 711948), (36, 593290), (40, 533961), (45, 474632), (60, 355974), (72, 296645), (79, 270360), (90, 237316), (120, 177987), (158, 135180), (180, 118658), (237, 90120), (316, 67590), (360, 59329), (395, 54072), (474, 45060), (632, 33795), (711, 30040), (751, 28440), (790, 27036), (948, 22530), (1185, 18024), (1422, 15020), (1502, 14220), (1580, 13518), (1896, 11265), (2253, 9480), (2370, 9012), (2844, 7510), (3004, 7110), (3160, 6759), (3555, 6008), (3755, 5688), (4506, 4740)]