20512221786

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{641}}^1\times {\mathrm{28219}}^1$

素因数の和:28881

約数の個数: 80

約数和(自身を含む): 52612464960

約数和(自身を除く): 32100243174

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 641, 1134, 1282, 1923, 3846, 4487, 5769, 8974, 11538, 13461, 17307, 26922, 28219, 34614, 40383, 51921, 56438, 80766, 84657, 103842, 121149, 169314, 197533, 242298, 253971, 363447, 395066, 507942, 592599, 726894, 761913, 1185198, 1523826, 1777797, 2285739, 3555594, 4571478, 5333391, 10666782, 16000173, 18088379, 32000346, 36176758, 54265137, 108530274, 126618653, 162795411, 253237306, 325590822, 379855959, 488386233, 759711918, 976772466, 1139567877, 1465158699, 2279135754, 2930317398, 3418703631, 6837407262, 10256110893, 20512221786]

約数ペア:

[(1, 20512221786), (2, 10256110893), (3, 6837407262), (6, 3418703631), (7, 2930317398), (9, 2279135754), (14, 1465158699), (18, 1139567877), (21, 976772466), (27, 759711918), (42, 488386233), (54, 379855959), (63, 325590822), (81, 253237306), (126, 162795411), (162, 126618653), (189, 108530274), (378, 54265137), (567, 36176758), (641, 32000346), (1134, 18088379), (1282, 16000173), (1923, 10666782), (3846, 5333391), (4487, 4571478), (5769, 3555594), (8974, 2285739), (11538, 1777797), (13461, 1523826), (17307, 1185198), (26922, 761913), (28219, 726894), (34614, 592599), (40383, 507942), (51921, 395066), (56438, 363447), (80766, 253971), (84657, 242298), (103842, 197533), (121149, 169314)]