31221918

素因数分解:

$2^1\times 3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 85176000

約数和(自身を除く): 53954082

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 234, 273, 294, 343, 389, 441, 546, 637, 686, 778, 819, 882, 1029, 1167, 1274, 1638, 1911, 2058, 2334, 2723, 3087, 3501, 3822, 4459, 5057, 5446, 5733, 6174, 7002, 8169, 8918, 10114, 11466, 13377, 15171, 16338, 19061, 24507, 26754, 30342, 35399, 38122, 40131, 45513, 49014, 57183, 70798, 80262, 91026, 106197, 114366, 133427, 171549, 212394, 247793, 266854, 318591, 343098, 400281, 495586, 637182, 743379, 800562, 1200843, 1486758, 1734551, 2230137, 2401686, 3469102, 4460274, 5203653, 10407306, 15610959, 31221918]

約数ペア:

[(1, 31221918), (2, 15610959), (3, 10407306), (6, 5203653), (7, 4460274), (9, 3469102), (13, 2401686), (14, 2230137), (18, 1734551), (21, 1486758), (26, 1200843), (39, 800562), (42, 743379), (49, 637182), (63, 495586), (78, 400281), (91, 343098), (98, 318591), (117, 266854), (126, 247793), (147, 212394), (182, 171549), (234, 133427), (273, 114366), (294, 106197), (343, 91026), (389, 80262), (441, 70798), (546, 57183), (637, 49014), (686, 45513), (778, 40131), (819, 38122), (882, 35399), (1029, 30342), (1167, 26754), (1274, 24507), (1638, 19061), (1911, 16338), (2058, 15171), (2334, 13377), (2723, 11466), (3087, 10114), (3501, 8918), (3822, 8169), (4459, 7002), (5057, 6174), (5446, 5733)]