19613464

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 40516200

約数和(自身を除く): 20902736

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 163, 169, 178, 326, 338, 356, 652, 676, 712, 1157, 1304, 1352, 2119, 2314, 4238, 4628, 8476, 9256, 14507, 15041, 16952, 27547, 29014, 30082, 55094, 58028, 60164, 110188, 116056, 120328, 188591, 220376, 377182, 754364, 1508728, 2451683, 4903366, 9806732, 19613464]

約数ペア:

[(1, 19613464), (2, 9806732), (4, 4903366), (8, 2451683), (13, 1508728), (26, 754364), (52, 377182), (89, 220376), (104, 188591), (163, 120328), (169, 116056), (178, 110188), (326, 60164), (338, 58028), (356, 55094), (652, 30082), (676, 29014), (712, 27547), (1157, 16952), (1304, 15041), (1352, 14507), (2119, 9256), (2314, 8476), (4238, 4628)]