49866921

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:148

約数の個数: 80

約数和(自身を含む): 87816960

約数和(自身を除く): 37950039

約数列:

[1, 3, 9, 13, 23, 27, 29, 39, 69, 71, 81, 87, 117, 207, 213, 261, 299, 351, 377, 621, 639, 667, 783, 897, 923, 1053, 1131, 1633, 1863, 1917, 2001, 2059, 2349, 2691, 2769, 3393, 4899, 5751, 6003, 6177, 8073, 8307, 8671, 10179, 14697, 18009, 18531, 21229, 24219, 24921, 26013, 26767, 30537, 44091, 47357, 54027, 55593, 63687, 74763, 78039, 80301, 132273, 142071, 166779, 191061, 234117, 240903, 426213, 573183, 615641, 702351, 722709, 1278639, 1719549, 1846923, 2168127, 3835917, 5540769, 16622307, 49866921]

約数ペア:

[(1, 49866921), (3, 16622307), (9, 5540769), (13, 3835917), (23, 2168127), (27, 1846923), (29, 1719549), (39, 1278639), (69, 722709), (71, 702351), (81, 615641), (87, 573183), (117, 426213), (207, 240903), (213, 234117), (261, 191061), (299, 166779), (351, 142071), (377, 132273), (621, 80301), (639, 78039), (667, 74763), (783, 63687), (897, 55593), (923, 54027), (1053, 47357), (1131, 44091), (1633, 30537), (1863, 26767), (1917, 26013), (2001, 24921), (2059, 24219), (2349, 21229), (2691, 18531), (2769, 18009), (3393, 14697), (4899, 10179), (5751, 8671), (6003, 8307), (6177, 8073)]