21293532

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 58522464

約数和(自身を除く): 37228932

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 173, 234, 263, 346, 468, 519, 526, 692, 789, 1038, 1052, 1557, 1578, 2076, 2249, 2367, 3114, 3156, 3419, 4498, 4734, 6228, 6747, 6838, 8996, 9468, 10257, 13494, 13676, 20241, 20514, 26988, 30771, 40482, 41028, 45499, 61542, 80964, 90998, 123084, 136497, 181996, 272994, 409491, 545988, 591487, 818982, 1182974, 1637964, 1774461, 2365948, 3548922, 5323383, 7097844, 10646766, 21293532]

約数ペア:

[(1, 21293532), (2, 10646766), (3, 7097844), (4, 5323383), (6, 3548922), (9, 2365948), (12, 1774461), (13, 1637964), (18, 1182974), (26, 818982), (36, 591487), (39, 545988), (52, 409491), (78, 272994), (117, 181996), (156, 136497), (173, 123084), (234, 90998), (263, 80964), (346, 61542), (468, 45499), (519, 41028), (526, 40482), (692, 30771), (789, 26988), (1038, 20514), (1052, 20241), (1557, 13676), (1578, 13494), (2076, 10257), (2249, 9468), (2367, 8996), (3114, 6838), (3156, 6747), (3419, 6228), (4498, 4734)]