20497334

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 37551600

約数和(自身を除く): 17054266

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 143, 149, 169, 286, 298, 338, 407, 481, 814, 962, 1639, 1859, 1937, 3278, 3718, 3874, 5291, 5513, 6253, 10582, 11026, 12506, 21307, 25181, 42614, 50362, 60643, 68783, 71669, 121286, 137566, 143338, 276991, 553982, 788359, 931697, 1576718, 1863394, 10248667, 20497334]

約数ペア:

[(1, 20497334), (2, 10248667), (11, 1863394), (13, 1576718), (22, 931697), (26, 788359), (37, 553982), (74, 276991), (143, 143338), (149, 137566), (169, 121286), (286, 71669), (298, 68783), (338, 60643), (407, 50362), (481, 42614), (814, 25181), (962, 21307), (1639, 12506), (1859, 11026), (1937, 10582), (3278, 6253), (3718, 5513), (3874, 5291)]