19992546

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1571}}^1$

素因数の和:1687

約数の個数: 48

約数和(自身を含む): 50027328

約数和(自身を除く): 30034782

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 101, 126, 202, 303, 606, 707, 909, 1414, 1571, 1818, 2121, 3142, 4242, 4713, 6363, 9426, 10997, 12726, 14139, 21994, 28278, 32991, 65982, 98973, 158671, 197946, 317342, 476013, 952026, 1110697, 1428039, 2221394, 2856078, 3332091, 6664182, 9996273, 19992546]

約数ペア:

[(1, 19992546), (2, 9996273), (3, 6664182), (6, 3332091), (7, 2856078), (9, 2221394), (14, 1428039), (18, 1110697), (21, 952026), (42, 476013), (63, 317342), (101, 197946), (126, 158671), (202, 98973), (303, 65982), (606, 32991), (707, 28278), (909, 21994), (1414, 14139), (1571, 12726), (1818, 10997), (2121, 9426), (3142, 6363), (4242, 4713)]