21248178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{5009}}^1$

素因数の和:5122

約数の個数: 32

約数和(自身を含む): 49057920

約数和(自身を除く): 27809742

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 101, 202, 303, 606, 707, 1414, 2121, 4242, 5009, 10018, 15027, 30054, 35063, 70126, 105189, 210378, 505909, 1011818, 1517727, 3035454, 3541363, 7082726, 10624089, 21248178]

約数ペア:

[(1, 21248178), (2, 10624089), (3, 7082726), (6, 3541363), (7, 3035454), (14, 1517727), (21, 1011818), (42, 505909), (101, 210378), (202, 105189), (303, 70126), (606, 35063), (707, 30054), (1414, 15027), (2121, 10018), (4242, 5009)]