21295976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 25273624

約数列:

[1, 2, 4, 8, 13, 23, 26, 29, 46, 52, 58, 92, 104, 116, 184, 232, 299, 307, 377, 598, 614, 667, 754, 1196, 1228, 1334, 1508, 2392, 2456, 2668, 3016, 3991, 5336, 7061, 7982, 8671, 8903, 14122, 15964, 17342, 17806, 28244, 31928, 34684, 35612, 56488, 69368, 71224, 91793, 115739, 183586, 204769, 231478, 367172, 409538, 462956, 734344, 819076, 925912, 1638152, 2661997, 5323994, 10647988, 21295976]

約数ペア:

[(1, 21295976), (2, 10647988), (4, 5323994), (8, 2661997), (13, 1638152), (23, 925912), (26, 819076), (29, 734344), (46, 462956), (52, 409538), (58, 367172), (92, 231478), (104, 204769), (116, 183586), (184, 115739), (232, 91793), (299, 71224), (307, 69368), (377, 56488), (598, 35612), (614, 34684), (667, 31928), (754, 28244), (1196, 17806), (1228, 17342), (1334, 15964), (1508, 14122), (2392, 8903), (2456, 8671), (2668, 7982), (3016, 7061), (3991, 5336)]