18640635

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{877}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 32450880

約数和(自身を除く): 13810245

約数列:

[1, 3, 5, 13, 15, 39, 65, 109, 195, 327, 545, 877, 1417, 1635, 2631, 4251, 4385, 7085, 11401, 13155, 21255, 34203, 57005, 95593, 171015, 286779, 477965, 1242709, 1433895, 3728127, 6213545, 18640635]

約数ペア:

[(1, 18640635), (3, 6213545), (5, 3728127), (13, 1433895), (15, 1242709), (39, 477965), (65, 286779), (109, 171015), (195, 95593), (327, 57005), (545, 34203), (877, 21255), (1417, 13155), (1635, 11401), (2631, 7085), (4251, 4385)]