21257415144

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{4686379}}^1$

素因数の和:4686404

約数の個数: 80

約数和(自身を含む): 68046237600

約数和(自身を除く): 46788822456

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 252, 324, 378, 504, 567, 648, 756, 1134, 1512, 2268, 4536, 4686379, 9372758, 14059137, 18745516, 28118274, 32804653, 37491032, 42177411, 56236548, 65609306, 84354822, 98413959, 112473096, 126532233, 131218612, 168709644, 196827918, 253064466, 262437224, 295241877, 337419288, 379596699, 393655836, 506128932, 590483754, 759193398, 787311672, 885725631, 1012257864, 1180967508, 1518386796, 1771451262, 2361935016, 2657176893, 3036773592, 3542902524, 5314353786, 7085805048, 10628707572, 21257415144]

約数ペア:

[(1, 21257415144), (2, 10628707572), (3, 7085805048), (4, 5314353786), (6, 3542902524), (7, 3036773592), (8, 2657176893), (9, 2361935016), (12, 1771451262), (14, 1518386796), (18, 1180967508), (21, 1012257864), (24, 885725631), (27, 787311672), (28, 759193398), (36, 590483754), (42, 506128932), (54, 393655836), (56, 379596699), (63, 337419288), (72, 295241877), (81, 262437224), (84, 253064466), (108, 196827918), (126, 168709644), (162, 131218612), (168, 126532233), (189, 112473096), (216, 98413959), (252, 84354822), (324, 65609306), (378, 56236548), (504, 42177411), (567, 37491032), (648, 32804653), (756, 28118274), (1134, 18745516), (1512, 14059137), (2268, 9372758), (4536, 4686379)]