19845309

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 30326400

約数和(自身を除く): 10481091

約数列:

[1, 3, 11, 29, 33, 87, 89, 233, 267, 319, 699, 957, 979, 2563, 2581, 2937, 6757, 7689, 7743, 20271, 20737, 28391, 62211, 74327, 85173, 222981, 228107, 601373, 684321, 1804119, 6615103, 19845309]

約数ペア:

[(1, 19845309), (3, 6615103), (11, 1804119), (29, 684321), (33, 601373), (87, 228107), (89, 222981), (233, 85173), (267, 74327), (319, 62211), (699, 28391), (957, 20737), (979, 20271), (2563, 7743), (2581, 7689), (2937, 6757)]