21899570

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:288

約数の個数: 96

約数和(自身を含む): 53187840

約数和(自身を除く): 31288270

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 49, 55, 70, 77, 85, 98, 110, 119, 154, 170, 187, 238, 239, 245, 374, 385, 478, 490, 539, 595, 770, 833, 935, 1078, 1190, 1195, 1309, 1666, 1673, 1870, 2390, 2618, 2629, 2695, 3346, 4063, 4165, 5258, 5390, 6545, 8126, 8330, 8365, 9163, 11711, 13090, 13145, 16730, 18326, 18403, 20315, 23422, 26290, 28441, 36806, 40630, 44693, 45815, 56882, 58555, 89386, 91630, 92015, 117110, 128821, 142205, 184030, 199087, 223465, 257642, 284410, 312851, 398174, 446930, 625702, 644105, 995435, 1288210, 1564255, 1990870, 2189957, 3128510, 4379914, 10949785, 21899570]

約数ペア:

[(1, 21899570), (2, 10949785), (5, 4379914), (7, 3128510), (10, 2189957), (11, 1990870), (14, 1564255), (17, 1288210), (22, 995435), (34, 644105), (35, 625702), (49, 446930), (55, 398174), (70, 312851), (77, 284410), (85, 257642), (98, 223465), (110, 199087), (119, 184030), (154, 142205), (170, 128821), (187, 117110), (238, 92015), (239, 91630), (245, 89386), (374, 58555), (385, 56882), (478, 45815), (490, 44693), (539, 40630), (595, 36806), (770, 28441), (833, 26290), (935, 23422), (1078, 20315), (1190, 18403), (1195, 18326), (1309, 16730), (1666, 13145), (1673, 13090), (1870, 11711), (2390, 9163), (2618, 8365), (2629, 8330), (2695, 8126), (3346, 6545), (4063, 5390), (4165, 5258)]