20718852

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1319}}^1$

素因数の和:1361

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 43148028

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 17, 21, 22, 28, 33, 34, 42, 44, 51, 66, 68, 77, 84, 102, 119, 132, 154, 187, 204, 231, 238, 308, 357, 374, 462, 476, 561, 714, 748, 924, 1122, 1309, 1319, 1428, 2244, 2618, 2638, 3927, 3957, 5236, 5276, 7854, 7914, 9233, 14509, 15708, 15828, 18466, 22423, 27699, 29018, 36932, 43527, 44846, 55398, 58036, 67269, 87054, 89692, 101563, 110796, 134538, 156961, 174108, 203126, 246653, 269076, 304689, 313922, 406252, 470883, 493306, 609378, 627844, 739959, 941766, 986612, 1218756, 1479918, 1726571, 1883532, 2959836, 3453142, 5179713, 6906284, 10359426, 20718852]

約数ペア:

[(1, 20718852), (2, 10359426), (3, 6906284), (4, 5179713), (6, 3453142), (7, 2959836), (11, 1883532), (12, 1726571), (14, 1479918), (17, 1218756), (21, 986612), (22, 941766), (28, 739959), (33, 627844), (34, 609378), (42, 493306), (44, 470883), (51, 406252), (66, 313922), (68, 304689), (77, 269076), (84, 246653), (102, 203126), (119, 174108), (132, 156961), (154, 134538), (187, 110796), (204, 101563), (231, 89692), (238, 87054), (308, 67269), (357, 58036), (374, 55398), (462, 44846), (476, 43527), (561, 36932), (714, 29018), (748, 27699), (924, 22423), (1122, 18466), (1309, 15828), (1319, 15708), (1428, 14509), (2244, 9233), (2618, 7914), (2638, 7854), (3927, 5276), (3957, 5236)]