18512505

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 16868295

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 149, 165, 251, 447, 495, 745, 753, 1255, 1341, 1639, 2235, 2259, 2761, 3765, 4917, 6705, 8195, 8283, 11295, 13805, 14751, 24585, 24849, 37399, 41415, 73755, 112197, 124245, 186995, 336591, 411389, 560985, 1234167, 1682955, 2056945, 3702501, 6170835, 18512505]

約数ペア:

[(1, 18512505), (3, 6170835), (5, 3702501), (9, 2056945), (11, 1682955), (15, 1234167), (33, 560985), (45, 411389), (55, 336591), (99, 186995), (149, 124245), (165, 112197), (251, 73755), (447, 41415), (495, 37399), (745, 24849), (753, 24585), (1255, 14751), (1341, 13805), (1639, 11295), (2235, 8283), (2259, 8195), (2761, 6705), (3765, 4917)]