13020795

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 24155040

約数和(自身を除く): 11134245

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 97, 157, 171, 285, 291, 471, 485, 785, 855, 873, 1413, 1455, 1843, 2355, 2983, 4365, 5529, 7065, 8949, 9215, 14915, 15229, 16587, 26847, 27645, 44745, 45687, 76145, 82935, 134235, 137061, 228435, 289351, 685305, 868053, 1446755, 2604159, 4340265, 13020795]

約数ペア:

[(1, 13020795), (3, 4340265), (5, 2604159), (9, 1446755), (15, 868053), (19, 685305), (45, 289351), (57, 228435), (95, 137061), (97, 134235), (157, 82935), (171, 76145), (285, 45687), (291, 44745), (471, 27645), (485, 26847), (785, 16587), (855, 15229), (873, 14915), (1413, 9215), (1455, 8949), (1843, 7065), (2355, 5529), (2983, 4365)]