31620009

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 47001600

約数和(自身を除く): 15381591

約数列:

[1, 3, 19, 23, 57, 69, 89, 267, 271, 437, 813, 1311, 1691, 2047, 5073, 5149, 6141, 6233, 15447, 18699, 24119, 38893, 72357, 116679, 118427, 355281, 458261, 554737, 1374783, 1664211, 10540003, 31620009]

約数ペア:

[(1, 31620009), (3, 10540003), (19, 1664211), (23, 1374783), (57, 554737), (69, 458261), (89, 355281), (267, 118427), (271, 116679), (437, 72357), (813, 38893), (1311, 24119), (1691, 18699), (2047, 15447), (5073, 6233), (5149, 6141)]