18958941

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 40

約数和(自身を含む): 30356480

約数和(自身を除く): 11397539

約数列:

[1, 3, 9, 19, 27, 57, 81, 97, 127, 171, 291, 381, 513, 873, 1143, 1539, 1843, 2413, 2619, 3429, 5529, 7239, 7857, 10287, 12319, 16587, 21717, 36957, 49761, 65151, 110871, 149283, 195453, 234061, 332613, 702183, 997839, 2106549, 6319647, 18958941]

約数ペア:

[(1, 18958941), (3, 6319647), (9, 2106549), (19, 997839), (27, 702183), (57, 332613), (81, 234061), (97, 195453), (127, 149283), (171, 110871), (291, 65151), (381, 49761), (513, 36957), (873, 21717), (1143, 16587), (1539, 12319), (1843, 10287), (2413, 7857), (2619, 7239), (3429, 5529)]