21734540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1277}}^1$

素因数の和:1346

約数の個数: 48

約数和(自身を含む): 48952512

約数和(自身を除く): 27217972

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1277, 1702, 2554, 3404, 4255, 5108, 6385, 8510, 12770, 17020, 25540, 29371, 47249, 58742, 94498, 117484, 146855, 188996, 236245, 293710, 472490, 587420, 944980, 1086727, 2173454, 4346908, 5433635, 10867270, 21734540]

約数ペア:

[(1, 21734540), (2, 10867270), (4, 5433635), (5, 4346908), (10, 2173454), (20, 1086727), (23, 944980), (37, 587420), (46, 472490), (74, 293710), (92, 236245), (115, 188996), (148, 146855), (185, 117484), (230, 94498), (370, 58742), (460, 47249), (740, 29371), (851, 25540), (1277, 17020), (1702, 12770), (2554, 8510), (3404, 6385), (4255, 5108)]