21018120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10303}}^1$

素因数の和:10334

約数の個数: 64

約数和(自身を含む): 66769920

約数和(自身を除く): 45751800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10303, 20606, 30909, 41212, 51515, 61818, 82424, 103030, 123636, 154545, 175151, 206060, 247272, 309090, 350302, 412120, 525453, 618180, 700604, 875755, 1050906, 1236360, 1401208, 1751510, 2101812, 2627265, 3503020, 4203624, 5254530, 7006040, 10509060, 21018120]

約数ペア:

[(1, 21018120), (2, 10509060), (3, 7006040), (4, 5254530), (5, 4203624), (6, 3503020), (8, 2627265), (10, 2101812), (12, 1751510), (15, 1401208), (17, 1236360), (20, 1050906), (24, 875755), (30, 700604), (34, 618180), (40, 525453), (51, 412120), (60, 350302), (68, 309090), (85, 247272), (102, 206060), (120, 175151), (136, 154545), (170, 123636), (204, 103030), (255, 82424), (340, 61818), (408, 51515), (510, 41212), (680, 30909), (1020, 20606), (2040, 10303)]