19778598

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1987}}^1$

素因数の和:2081

約数の個数: 48

約数和(自身を含む): 49620480

約数和(自身を除く): 29841882

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 79, 126, 158, 237, 474, 553, 711, 1106, 1422, 1659, 1987, 3318, 3974, 4977, 5961, 9954, 11922, 13909, 17883, 27818, 35766, 41727, 83454, 125181, 156973, 250362, 313946, 470919, 941838, 1098811, 1412757, 2197622, 2825514, 3296433, 6592866, 9889299, 19778598]

約数ペア:

[(1, 19778598), (2, 9889299), (3, 6592866), (6, 3296433), (7, 2825514), (9, 2197622), (14, 1412757), (18, 1098811), (21, 941838), (42, 470919), (63, 313946), (79, 250362), (126, 156973), (158, 125181), (237, 83454), (474, 41727), (553, 35766), (711, 27818), (1106, 17883), (1422, 13909), (1659, 11922), (1987, 9954), (3318, 5961), (3974, 4977)]