15678320721

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{24683}}^1$

素因数の和:24878

約数の個数: 48

約数和(自身を含む): 25325784000

約数和(自身を除く): 9647463279

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 149, 203, 447, 609, 1043, 1421, 3129, 4263, 4321, 7301, 12963, 21903, 24683, 30247, 74049, 90741, 172781, 211729, 518343, 635187, 715807, 1209467, 2147421, 3628401, 3677767, 5010649, 11033301, 15031947, 25744369, 35074543, 77233107, 105223629, 106655243, 180210583, 319965729, 540631749, 746586701, 2239760103, 5226106907, 15678320721]

約数ペア:

[(1, 15678320721), (3, 5226106907), (7, 2239760103), (21, 746586701), (29, 540631749), (49, 319965729), (87, 180210583), (147, 106655243), (149, 105223629), (203, 77233107), (447, 35074543), (609, 25744369), (1043, 15031947), (1421, 11033301), (3129, 5010649), (4263, 3677767), (4321, 3628401), (7301, 2147421), (12963, 1209467), (21903, 715807), (24683, 635187), (30247, 518343), (74049, 211729), (90741, 172781)]