21717180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:456

約数の個数: 96

約数和(自身を含む): 68302080

約数和(自身を除く): 46584900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 131, 135, 180, 262, 270, 307, 393, 524, 540, 614, 655, 786, 921, 1179, 1228, 1310, 1535, 1572, 1842, 1965, 2358, 2620, 2763, 3070, 3537, 3684, 3930, 4605, 4716, 5526, 5895, 6140, 7074, 7860, 8289, 9210, 11052, 11790, 13815, 14148, 16578, 17685, 18420, 23580, 27630, 33156, 35370, 40217, 41445, 55260, 70740, 80434, 82890, 120651, 160868, 165780, 201085, 241302, 361953, 402170, 482604, 603255, 723906, 804340, 1085859, 1206510, 1447812, 1809765, 2171718, 2413020, 3619530, 4343436, 5429295, 7239060, 10858590, 21717180]

約数ペア:

[(1, 21717180), (2, 10858590), (3, 7239060), (4, 5429295), (5, 4343436), (6, 3619530), (9, 2413020), (10, 2171718), (12, 1809765), (15, 1447812), (18, 1206510), (20, 1085859), (27, 804340), (30, 723906), (36, 603255), (45, 482604), (54, 402170), (60, 361953), (90, 241302), (108, 201085), (131, 165780), (135, 160868), (180, 120651), (262, 82890), (270, 80434), (307, 70740), (393, 55260), (524, 41445), (540, 40217), (614, 35370), (655, 33156), (786, 27630), (921, 23580), (1179, 18420), (1228, 17685), (1310, 16578), (1535, 14148), (1572, 13815), (1842, 11790), (1965, 11052), (2358, 9210), (2620, 8289), (2763, 7860), (3070, 7074), (3537, 6140), (3684, 5895), (3930, 5526), (4605, 4716)]