21698937

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{971}}^1$

素因数の和:1181

約数の個数: 24

約数和(自身を含む): 33965568

約数和(自身を除く): 12266631

約数列:

[1, 3, 9, 13, 39, 117, 191, 573, 971, 1719, 2483, 2913, 7449, 8739, 12623, 22347, 37869, 113607, 185461, 556383, 1669149, 2410993, 7232979, 21698937]

約数ペア:

[(1, 21698937), (3, 7232979), (9, 2410993), (13, 1669149), (39, 556383), (117, 185461), (191, 113607), (573, 37869), (971, 22347), (1719, 12623), (2483, 8739), (2913, 7449)]