18896696

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 44210880

約数和(自身を除く): 25314184

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 101, 104, 182, 202, 257, 364, 404, 514, 707, 728, 808, 1028, 1313, 1414, 1799, 2056, 2626, 2828, 3341, 3598, 5252, 5656, 6682, 7196, 9191, 10504, 13364, 14392, 18382, 23387, 25957, 26728, 36764, 46774, 51914, 73528, 93548, 103828, 181699, 187096, 207656, 337441, 363398, 674882, 726796, 1349764, 1453592, 2362087, 2699528, 4724174, 9448348, 18896696]

約数ペア:

[(1, 18896696), (2, 9448348), (4, 4724174), (7, 2699528), (8, 2362087), (13, 1453592), (14, 1349764), (26, 726796), (28, 674882), (52, 363398), (56, 337441), (91, 207656), (101, 187096), (104, 181699), (182, 103828), (202, 93548), (257, 73528), (364, 51914), (404, 46774), (514, 36764), (707, 26728), (728, 25957), (808, 23387), (1028, 18382), (1313, 14392), (1414, 13364), (1799, 10504), (2056, 9191), (2626, 7196), (2828, 6682), (3341, 5656), (3598, 5252)]