18803475

素因数分解:

$3^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 35042400

約数和(自身を除く): 16238925

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 89, 135, 225, 267, 313, 445, 675, 801, 939, 1335, 1565, 2225, 2403, 2817, 4005, 4695, 6675, 7825, 8451, 12015, 14085, 20025, 23475, 27857, 42255, 60075, 70425, 83571, 139285, 211275, 250713, 417855, 696425, 752139, 1253565, 2089275, 3760695, 6267825, 18803475]

約数ペア:

[(1, 18803475), (3, 6267825), (5, 3760695), (9, 2089275), (15, 1253565), (25, 752139), (27, 696425), (45, 417855), (75, 250713), (89, 211275), (135, 139285), (225, 83571), (267, 70425), (313, 60075), (445, 42255), (675, 27857), (801, 23475), (939, 20025), (1335, 14085), (1565, 12015), (2225, 8451), (2403, 7825), (2817, 6675), (4005, 4695)]