19778364

素因数分解:

$2^2\times 3^3\times {\mathrm{367}}^1\times {\mathrm{499}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 51520000

約数和(自身を除く): 31741636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 367, 499, 734, 998, 1101, 1468, 1497, 1996, 2202, 2994, 3303, 4404, 4491, 5988, 6606, 8982, 9909, 13212, 13473, 17964, 19818, 26946, 39636, 53892, 183133, 366266, 549399, 732532, 1098798, 1648197, 2197596, 3296394, 4944591, 6592788, 9889182, 19778364]

約数ペア:

[(1, 19778364), (2, 9889182), (3, 6592788), (4, 4944591), (6, 3296394), (9, 2197596), (12, 1648197), (18, 1098798), (27, 732532), (36, 549399), (54, 366266), (108, 183133), (367, 53892), (499, 39636), (734, 26946), (998, 19818), (1101, 17964), (1468, 13473), (1497, 13212), (1996, 9909), (2202, 8982), (2994, 6606), (3303, 5988), (4404, 4491)]