19661448

素因数分解:

$2^3\times 3^1\times {\mathrm{409}}^1\times {\mathrm{2003}}^1$

素因数の和:2421

約数の個数: 32

約数和(自身を含む): 49298400

約数和(自身を除く): 29636952

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 409, 818, 1227, 1636, 2003, 2454, 3272, 4006, 4908, 6009, 8012, 9816, 12018, 16024, 24036, 48072, 819227, 1638454, 2457681, 3276908, 4915362, 6553816, 9830724, 19661448]

約数ペア:

[(1, 19661448), (2, 9830724), (3, 6553816), (4, 4915362), (6, 3276908), (8, 2457681), (12, 1638454), (24, 819227), (409, 48072), (818, 24036), (1227, 16024), (1636, 12018), (2003, 9816), (2454, 8012), (3272, 6009), (4006, 4908)]