21210054765

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{348191}}^1$

素因数の和:348361

約数の個数: 32

約数和(自身を含む): 35298312192

約数和(自身を除く): 14088257427

約数列:

[1, 3, 5, 15, 31, 93, 131, 155, 393, 465, 655, 1965, 4061, 12183, 20305, 60915, 348191, 1044573, 1740955, 5222865, 10793921, 32381763, 45613021, 53969605, 136839063, 161908815, 228065105, 684195315, 1414003651, 4242010953, 7070018255, 21210054765]

約数ペア:

[(1, 21210054765), (3, 7070018255), (5, 4242010953), (15, 1414003651), (31, 684195315), (93, 228065105), (131, 161908815), (155, 136839063), (393, 53969605), (465, 45613021), (655, 32381763), (1965, 10793921), (4061, 5222865), (12183, 1740955), (20305, 1044573), (60915, 348191)]