19927458

素因数分解:

$2^1\times 3^5\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 45261216

約数和(自身を除く): 25333758

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 131, 162, 243, 262, 313, 393, 486, 626, 786, 939, 1179, 1878, 2358, 2817, 3537, 5634, 7074, 8451, 10611, 16902, 21222, 25353, 31833, 41003, 50706, 63666, 76059, 82006, 123009, 152118, 246018, 369027, 738054, 1107081, 2214162, 3321243, 6642486, 9963729, 19927458]

約数ペア:

[(1, 19927458), (2, 9963729), (3, 6642486), (6, 3321243), (9, 2214162), (18, 1107081), (27, 738054), (54, 369027), (81, 246018), (131, 152118), (162, 123009), (243, 82006), (262, 76059), (313, 63666), (393, 50706), (486, 41003), (626, 31833), (786, 25353), (939, 21222), (1179, 16902), (1878, 10611), (2358, 8451), (2817, 7074), (3537, 5634)]