19312568

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 40506480

約数和(自身を除く): 21193912

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 121, 142, 242, 281, 284, 484, 562, 568, 781, 968, 1124, 1562, 2248, 3091, 3124, 6182, 6248, 8591, 12364, 17182, 19951, 24728, 34001, 34364, 39902, 68002, 68728, 79804, 136004, 159608, 219461, 272008, 438922, 877844, 1755688, 2414071, 4828142, 9656284, 19312568]

約数ペア:

[(1, 19312568), (2, 9656284), (4, 4828142), (8, 2414071), (11, 1755688), (22, 877844), (44, 438922), (71, 272008), (88, 219461), (121, 159608), (142, 136004), (242, 79804), (281, 68728), (284, 68002), (484, 39902), (562, 34364), (568, 34001), (781, 24728), (968, 19951), (1124, 17182), (1562, 12364), (2248, 8591), (3091, 6248), (3124, 6182)]