19933888

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 84

約数和(自身を含む): 45552360

約数和(自身を除く): 25618472

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 97, 104, 152, 169, 194, 208, 247, 304, 338, 388, 416, 494, 608, 676, 776, 832, 988, 1216, 1261, 1352, 1552, 1843, 1976, 2522, 2704, 3104, 3211, 3686, 3952, 5044, 5408, 6208, 6422, 7372, 7904, 10088, 10816, 12844, 14744, 15808, 16393, 20176, 23959, 25688, 29488, 32786, 40352, 47918, 51376, 58976, 65572, 80704, 95836, 102752, 117952, 131144, 191672, 205504, 262288, 311467, 383344, 524576, 622934, 766688, 1049152, 1245868, 1533376, 2491736, 4983472, 9966944, 19933888]

約数ペア:

[(1, 19933888), (2, 9966944), (4, 4983472), (8, 2491736), (13, 1533376), (16, 1245868), (19, 1049152), (26, 766688), (32, 622934), (38, 524576), (52, 383344), (64, 311467), (76, 262288), (97, 205504), (104, 191672), (152, 131144), (169, 117952), (194, 102752), (208, 95836), (247, 80704), (304, 65572), (338, 58976), (388, 51376), (416, 47918), (494, 40352), (608, 32786), (676, 29488), (776, 25688), (832, 23959), (988, 20176), (1216, 16393), (1261, 15808), (1352, 14744), (1552, 12844), (1843, 10816), (1976, 10088), (2522, 7904), (2704, 7372), (3104, 6422), (3211, 6208), (3686, 5408), (3952, 5044)]