19957491

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1439}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 30551040

約数和(自身を除く): 10593549

約数列:

[1, 3, 9, 23, 67, 69, 201, 207, 603, 1439, 1541, 4317, 4623, 12951, 13869, 33097, 96413, 99291, 289239, 297873, 867717, 2217499, 6652497, 19957491]

約数ペア:

[(1, 19957491), (3, 6652497), (9, 2217499), (23, 867717), (67, 297873), (69, 289239), (201, 99291), (207, 96413), (603, 33097), (1439, 13869), (1541, 12951), (4317, 4623)]