21127878

素因数分解:

$2^1\times 3^6\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:400

約数の個数: 56

約数和(自身を含む): 48765288

約数和(自身を除く): 27637410

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 81, 86, 129, 162, 243, 258, 337, 387, 486, 674, 729, 774, 1011, 1161, 1458, 2022, 2322, 3033, 3483, 6066, 6966, 9099, 10449, 14491, 18198, 20898, 27297, 28982, 31347, 43473, 54594, 62694, 81891, 86946, 130419, 163782, 245673, 260838, 391257, 491346, 782514, 1173771, 2347542, 3521313, 7042626, 10563939, 21127878]

約数ペア:

[(1, 21127878), (2, 10563939), (3, 7042626), (6, 3521313), (9, 2347542), (18, 1173771), (27, 782514), (43, 491346), (54, 391257), (81, 260838), (86, 245673), (129, 163782), (162, 130419), (243, 86946), (258, 81891), (337, 62694), (387, 54594), (486, 43473), (674, 31347), (729, 28982), (774, 27297), (1011, 20898), (1161, 18198), (1458, 14491), (2022, 10449), (2322, 9099), (3033, 6966), (3483, 6066)]