19719986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{191}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 36868608

約数和(自身を除く): 17148622

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 143, 191, 209, 247, 286, 361, 382, 418, 494, 722, 2101, 2483, 2717, 3629, 3971, 4202, 4693, 4966, 5434, 7258, 7942, 9386, 27313, 39919, 47177, 51623, 54626, 68951, 79838, 94354, 103246, 137902, 518947, 758461, 896363, 1037894, 1516922, 1792726, 9859993, 19719986]

約数ペア:

[(1, 19719986), (2, 9859993), (11, 1792726), (13, 1516922), (19, 1037894), (22, 896363), (26, 758461), (38, 518947), (143, 137902), (191, 103246), (209, 94354), (247, 79838), (286, 68951), (361, 54626), (382, 51623), (418, 47177), (494, 39919), (722, 27313), (2101, 9386), (2483, 7942), (2717, 7258), (3629, 5434), (3971, 4966), (4202, 4693)]