17720073

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 32140800

約数和(自身を除く): 14420727

約数列:

[1, 3, 7, 9, 21, 27, 29, 53, 61, 63, 87, 159, 183, 189, 203, 261, 371, 427, 477, 549, 609, 783, 1113, 1281, 1431, 1537, 1647, 1769, 1827, 3233, 3339, 3843, 4611, 5307, 5481, 9699, 10017, 10759, 11529, 12383, 13833, 15921, 22631, 29097, 32277, 37149, 41499, 47763, 67893, 87291, 93757, 96831, 111447, 203679, 281271, 290493, 334341, 611037, 656299, 843813, 1968897, 2531439, 5906691, 17720073]

約数ペア:

[(1, 17720073), (3, 5906691), (7, 2531439), (9, 1968897), (21, 843813), (27, 656299), (29, 611037), (53, 334341), (61, 290493), (63, 281271), (87, 203679), (159, 111447), (183, 96831), (189, 93757), (203, 87291), (261, 67893), (371, 47763), (427, 41499), (477, 37149), (549, 32277), (609, 29097), (783, 22631), (1113, 15921), (1281, 13833), (1431, 12383), (1537, 11529), (1647, 10759), (1769, 10017), (1827, 9699), (3233, 5481), (3339, 5307), (3843, 4611)]