21329190

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 57309120

約数和(自身を除く): 35979930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 197, 270, 394, 401, 591, 802, 985, 1182, 1203, 1773, 1970, 2005, 2406, 2955, 3546, 3609, 4010, 5319, 5910, 6015, 7218, 8865, 10638, 10827, 12030, 17730, 18045, 21654, 26595, 36090, 53190, 54135, 78997, 108270, 157994, 236991, 394985, 473982, 710973, 789970, 1184955, 1421946, 2132919, 2369910, 3554865, 4265838, 7109730, 10664595, 21329190]

約数ペア:

[(1, 21329190), (2, 10664595), (3, 7109730), (5, 4265838), (6, 3554865), (9, 2369910), (10, 2132919), (15, 1421946), (18, 1184955), (27, 789970), (30, 710973), (45, 473982), (54, 394985), (90, 236991), (135, 157994), (197, 108270), (270, 78997), (394, 54135), (401, 53190), (591, 36090), (802, 26595), (985, 21654), (1182, 18045), (1203, 17730), (1773, 12030), (1970, 10827), (2005, 10638), (2406, 8865), (2955, 7218), (3546, 6015), (3609, 5910), (4010, 5319)]