21396232

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 48081600

約数和(自身を除く): 26685368

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 59, 88, 104, 118, 143, 236, 286, 317, 472, 572, 634, 649, 767, 1144, 1268, 1298, 1534, 2536, 2596, 3068, 3487, 4121, 5192, 6136, 6974, 8242, 8437, 13948, 16484, 16874, 18703, 27896, 32968, 33748, 37406, 45331, 67496, 74812, 90662, 149624, 181324, 205733, 243139, 362648, 411466, 486278, 822932, 972556, 1645864, 1945112, 2674529, 5349058, 10698116, 21396232]

約数ペア:

[(1, 21396232), (2, 10698116), (4, 5349058), (8, 2674529), (11, 1945112), (13, 1645864), (22, 972556), (26, 822932), (44, 486278), (52, 411466), (59, 362648), (88, 243139), (104, 205733), (118, 181324), (143, 149624), (236, 90662), (286, 74812), (317, 67496), (472, 45331), (572, 37406), (634, 33748), (649, 32968), (767, 27896), (1144, 18703), (1268, 16874), (1298, 16484), (1534, 13948), (2536, 8437), (2596, 8242), (3068, 6974), (3487, 6136), (4121, 5192)]