18289856

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 84

約数和(自身を含む): 41833800

約数和(自身を除く): 23543944

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 89, 104, 152, 169, 178, 208, 247, 304, 338, 356, 416, 494, 608, 676, 712, 832, 988, 1157, 1216, 1352, 1424, 1691, 1976, 2314, 2704, 2848, 3211, 3382, 3952, 4628, 5408, 5696, 6422, 6764, 7904, 9256, 10816, 12844, 13528, 15041, 15808, 18512, 21983, 25688, 27056, 30082, 37024, 43966, 51376, 54112, 60164, 74048, 87932, 102752, 108224, 120328, 175864, 205504, 240656, 285779, 351728, 481312, 571558, 703456, 962624, 1143116, 1406912, 2286232, 4572464, 9144928, 18289856]

約数ペア:

[(1, 18289856), (2, 9144928), (4, 4572464), (8, 2286232), (13, 1406912), (16, 1143116), (19, 962624), (26, 703456), (32, 571558), (38, 481312), (52, 351728), (64, 285779), (76, 240656), (89, 205504), (104, 175864), (152, 120328), (169, 108224), (178, 102752), (208, 87932), (247, 74048), (304, 60164), (338, 54112), (356, 51376), (416, 43966), (494, 37024), (608, 30082), (676, 27056), (712, 25688), (832, 21983), (988, 18512), (1157, 15808), (1216, 15041), (1352, 13528), (1424, 12844), (1691, 10816), (1976, 9256), (2314, 7904), (2704, 6764), (2848, 6422), (3211, 5696), (3382, 5408), (3952, 4628)]