78902991

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{307}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 125220480

約数和(自身を除く): 46317489

約数列:

[1, 3, 9, 19, 27, 57, 81, 167, 171, 307, 501, 513, 921, 1503, 1539, 2763, 3173, 4509, 5833, 8289, 9519, 13527, 17499, 24867, 28557, 51269, 52497, 85671, 153807, 157491, 257013, 461421, 472473, 974111, 1384263, 2922333, 4152789, 8766999, 26300997, 78902991]

約数ペア:

[(1, 78902991), (3, 26300997), (9, 8766999), (19, 4152789), (27, 2922333), (57, 1384263), (81, 974111), (167, 472473), (171, 461421), (307, 257013), (501, 157491), (513, 153807), (921, 85671), (1503, 52497), (1539, 51269), (2763, 28557), (3173, 24867), (4509, 17499), (5833, 13527), (8289, 9519)]