21952203

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 36298752

約数和(自身を除く): 14346549

約数列:

[1, 3, 7, 13, 21, 39, 91, 191, 273, 421, 573, 1263, 1337, 2483, 2947, 4011, 5473, 7449, 8841, 16419, 17381, 38311, 52143, 80411, 114933, 241233, 562877, 1045343, 1688631, 3136029, 7317401, 21952203]

約数ペア:

[(1, 21952203), (3, 7317401), (7, 3136029), (13, 1688631), (21, 1045343), (39, 562877), (91, 241233), (191, 114933), (273, 80411), (421, 52143), (573, 38311), (1263, 17381), (1337, 16419), (2483, 8841), (2947, 7449), (4011, 5473)]