18880914

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 44634240

約数和(自身を除く): 25753326

約数列:

[1, 2, 3, 6, 13, 17, 26, 29, 34, 39, 51, 58, 78, 87, 102, 174, 221, 377, 442, 491, 493, 663, 754, 982, 986, 1131, 1326, 1473, 1479, 2262, 2946, 2958, 6383, 6409, 8347, 12766, 12818, 14239, 16694, 19149, 19227, 25041, 28478, 38298, 38454, 42717, 50082, 85434, 108511, 185107, 217022, 242063, 325533, 370214, 484126, 555321, 651066, 726189, 1110642, 1452378, 3146819, 6293638, 9440457, 18880914]

約数ペア:

[(1, 18880914), (2, 9440457), (3, 6293638), (6, 3146819), (13, 1452378), (17, 1110642), (26, 726189), (29, 651066), (34, 555321), (39, 484126), (51, 370214), (58, 325533), (78, 242063), (87, 217022), (102, 185107), (174, 108511), (221, 85434), (377, 50082), (442, 42717), (491, 38454), (493, 38298), (663, 28478), (754, 25041), (982, 19227), (986, 19149), (1131, 16694), (1326, 14239), (1473, 12818), (1479, 12766), (2262, 8347), (2946, 6409), (2958, 6383)]