21000570612

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1\times {\mathrm{5503}}^1$

素因数の和:5949

約数の個数: 96

約数和(自身を含む): 56545542144

約数和(自身を除く): 35544971532

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 181, 251, 362, 502, 543, 724, 753, 1004, 1086, 1267, 1506, 1757, 2172, 2534, 3012, 3514, 3801, 5068, 5271, 5503, 7028, 7602, 10542, 11006, 15204, 16509, 21084, 22012, 33018, 38521, 45431, 66036, 77042, 90862, 115563, 136293, 154084, 181724, 231126, 272586, 318017, 462252, 545172, 636034, 954051, 996043, 1272068, 1381253, 1908102, 1992086, 2762506, 2988129, 3816204, 3984172, 4143759, 5525012, 5976258, 6972301, 8287518, 9668771, 11952516, 13944602, 16575036, 19337542, 20916903, 27889204, 29006313, 38675084, 41833806, 58012626, 83667612, 116025252, 250006793, 500013586, 750020379, 1000027172, 1500040758, 1750047551, 3000081516, 3500095102, 5250142653, 7000190204, 10500285306, 21000570612]

約数ペア:

[(1, 21000570612), (2, 10500285306), (3, 7000190204), (4, 5250142653), (6, 3500095102), (7, 3000081516), (12, 1750047551), (14, 1500040758), (21, 1000027172), (28, 750020379), (42, 500013586), (84, 250006793), (181, 116025252), (251, 83667612), (362, 58012626), (502, 41833806), (543, 38675084), (724, 29006313), (753, 27889204), (1004, 20916903), (1086, 19337542), (1267, 16575036), (1506, 13944602), (1757, 11952516), (2172, 9668771), (2534, 8287518), (3012, 6972301), (3514, 5976258), (3801, 5525012), (5068, 4143759), (5271, 3984172), (5503, 3816204), (7028, 2988129), (7602, 2762506), (10542, 1992086), (11006, 1908102), (15204, 1381253), (16509, 1272068), (21084, 996043), (22012, 954051), (33018, 636034), (38521, 545172), (45431, 462252), (66036, 318017), (77042, 272586), (90862, 231126), (115563, 181724), (136293, 154084)]