21953260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{673}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 52992576

約数和(自身を除く): 31039316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 233, 466, 673, 932, 1165, 1346, 1631, 2330, 2692, 3262, 3365, 4660, 4711, 6524, 6730, 8155, 9422, 13460, 16310, 18844, 23555, 32620, 47110, 94220, 156809, 313618, 627236, 784045, 1097663, 1568090, 2195326, 3136180, 4390652, 5488315, 10976630, 21953260]

約数ペア:

[(1, 21953260), (2, 10976630), (4, 5488315), (5, 4390652), (7, 3136180), (10, 2195326), (14, 1568090), (20, 1097663), (28, 784045), (35, 627236), (70, 313618), (140, 156809), (233, 94220), (466, 47110), (673, 32620), (932, 23555), (1165, 18844), (1346, 16310), (1631, 13460), (2330, 9422), (2692, 8155), (3262, 6730), (3365, 6524), (4660, 4711)]