19495539

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 35712000

約数和(自身を除く): 16216461

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 61, 63, 89, 133, 171, 183, 189, 267, 399, 427, 513, 549, 623, 801, 1159, 1197, 1281, 1647, 1691, 1869, 2403, 3477, 3591, 3843, 5073, 5429, 5607, 8113, 10431, 11529, 11837, 15219, 16287, 16821, 24339, 31293, 35511, 38003, 45657, 48861, 73017, 103151, 106533, 114009, 146583, 219051, 309453, 319599, 342027, 722057, 928359, 1026081, 2166171, 2785077, 6498513, 19495539]

約数ペア:

[(1, 19495539), (3, 6498513), (7, 2785077), (9, 2166171), (19, 1026081), (21, 928359), (27, 722057), (57, 342027), (61, 319599), (63, 309453), (89, 219051), (133, 146583), (171, 114009), (183, 106533), (189, 103151), (267, 73017), (399, 48861), (427, 45657), (513, 38003), (549, 35511), (623, 31293), (801, 24339), (1159, 16821), (1197, 16287), (1281, 15219), (1647, 11837), (1691, 11529), (1869, 10431), (2403, 8113), (3477, 5607), (3591, 5429), (3843, 5073)]