19716543

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1237}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 37080576

約数和(自身を除く): 17364033

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 63, 69, 77, 99, 161, 207, 231, 253, 483, 693, 759, 1237, 1449, 1771, 2277, 3711, 5313, 8659, 11133, 13607, 15939, 25977, 28451, 40821, 77931, 85353, 95249, 122463, 199157, 256059, 285747, 312961, 597471, 857241, 938883, 1792413, 2190727, 2816649, 6572181, 19716543]

約数ペア:

[(1, 19716543), (3, 6572181), (7, 2816649), (9, 2190727), (11, 1792413), (21, 938883), (23, 857241), (33, 597471), (63, 312961), (69, 285747), (77, 256059), (99, 199157), (161, 122463), (207, 95249), (231, 85353), (253, 77931), (483, 40821), (693, 28451), (759, 25977), (1237, 15939), (1449, 13607), (1771, 11133), (2277, 8659), (3711, 5313)]