19489648

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{251}}^1$

素因数の和:493

約数の個数: 40

約数和(自身を含む): 39747456

約数和(自身を除く): 20257808

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 211, 251, 368, 422, 502, 844, 1004, 1688, 2008, 3376, 4016, 4853, 5773, 9706, 11546, 19412, 23092, 38824, 46184, 52961, 77648, 92368, 105922, 211844, 423688, 847376, 1218103, 2436206, 4872412, 9744824, 19489648]

約数ペア:

[(1, 19489648), (2, 9744824), (4, 4872412), (8, 2436206), (16, 1218103), (23, 847376), (46, 423688), (92, 211844), (184, 105922), (211, 92368), (251, 77648), (368, 52961), (422, 46184), (502, 38824), (844, 23092), (1004, 19412), (1688, 11546), (2008, 9706), (3376, 5773), (4016, 4853)]