21843003

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 16864197

約数列:

[1, 3, 7, 13, 21, 29, 31, 39, 87, 89, 91, 93, 203, 217, 267, 273, 377, 403, 609, 623, 651, 899, 1131, 1157, 1209, 1869, 2581, 2639, 2697, 2759, 2821, 3471, 6293, 7743, 7917, 8099, 8277, 8463, 11687, 18067, 18879, 19313, 24297, 33553, 35061, 35867, 54201, 57939, 80011, 81809, 100659, 107601, 234871, 240033, 245427, 251069, 560077, 704613, 753207, 1040143, 1680231, 3120429, 7281001, 21843003]

約数ペア:

[(1, 21843003), (3, 7281001), (7, 3120429), (13, 1680231), (21, 1040143), (29, 753207), (31, 704613), (39, 560077), (87, 251069), (89, 245427), (91, 240033), (93, 234871), (203, 107601), (217, 100659), (267, 81809), (273, 80011), (377, 57939), (403, 54201), (609, 35867), (623, 35061), (651, 33553), (899, 24297), (1131, 19313), (1157, 18879), (1209, 18067), (1869, 11687), (2581, 8463), (2639, 8277), (2697, 8099), (2759, 7917), (2821, 7743), (3471, 6293)]