18976782

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 44870400

約数和(自身を除く): 25893618

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 37, 38, 57, 66, 74, 111, 114, 209, 222, 407, 409, 418, 627, 703, 814, 818, 1221, 1227, 1254, 1406, 2109, 2442, 2454, 4218, 4499, 7733, 7771, 8998, 13497, 15133, 15466, 15542, 23199, 23313, 26994, 30266, 45399, 46398, 46626, 85481, 90798, 166463, 170962, 256443, 287527, 332926, 499389, 512886, 575054, 862581, 998778, 1725162, 3162797, 6325594, 9488391, 18976782]

約数ペア:

[(1, 18976782), (2, 9488391), (3, 6325594), (6, 3162797), (11, 1725162), (19, 998778), (22, 862581), (33, 575054), (37, 512886), (38, 499389), (57, 332926), (66, 287527), (74, 256443), (111, 170962), (114, 166463), (209, 90798), (222, 85481), (407, 46626), (409, 46398), (418, 45399), (627, 30266), (703, 26994), (814, 23313), (818, 23199), (1221, 15542), (1227, 15466), (1254, 15133), (1406, 13497), (2109, 8998), (2442, 7771), (2454, 7733), (4218, 4499)]