1771978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:262

約数の個数: 32

約数和(自身を含む): 3205440

約数和(自身を除く): 1433462

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 211, 221, 247, 323, 422, 442, 494, 646, 2743, 3587, 4009, 4199, 5486, 7174, 8018, 8398, 46631, 52117, 68153, 93262, 104234, 136306, 885989, 1771978]

約数ペア:

[(1, 1771978), (2, 885989), (13, 136306), (17, 104234), (19, 93262), (26, 68153), (34, 52117), (38, 46631), (211, 8398), (221, 8018), (247, 7174), (323, 5486), (422, 4199), (442, 4009), (494, 3587), (646, 2743)]