19545516

素因数分解:

$2^2\times 3^3\times {\mathrm{137}}^1\times {\mathrm{1321}}^1$

素因数の和:1471

約数の個数: 48

約数和(自身を含む): 51082080

約数和(自身を除く): 31536564

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 137, 274, 411, 548, 822, 1233, 1321, 1644, 2466, 2642, 3699, 3963, 4932, 5284, 7398, 7926, 11889, 14796, 15852, 23778, 35667, 47556, 71334, 142668, 180977, 361954, 542931, 723908, 1085862, 1628793, 2171724, 3257586, 4886379, 6515172, 9772758, 19545516]

約数ペア:

[(1, 19545516), (2, 9772758), (3, 6515172), (4, 4886379), (6, 3257586), (9, 2171724), (12, 1628793), (18, 1085862), (27, 723908), (36, 542931), (54, 361954), (108, 180977), (137, 142668), (274, 71334), (411, 47556), (548, 35667), (822, 23778), (1233, 15852), (1321, 14796), (1644, 11889), (2466, 7926), (2642, 7398), (3699, 5284), (3963, 4932)]