21005932010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^3\times {\mathrm{1439}}^1$

素因数の和:1553

約数の個数: 96

約数和(自身を含む): 45481512960

約数和(自身を除く): 24475580950

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 961, 1085, 1439, 1519, 1922, 2170, 2878, 3038, 4805, 6727, 7195, 7595, 9610, 10073, 13454, 14390, 15190, 20146, 29791, 33635, 44609, 47089, 50365, 59582, 67270, 70511, 89218, 94178, 100730, 141022, 148955, 208537, 223045, 235445, 297910, 312263, 352555, 417074, 446090, 470890, 624526, 705110, 1042685, 1382879, 1459759, 1561315, 2085370, 2185841, 2765758, 2919518, 3122630, 4371682, 6914395, 7298795, 9680153, 10929205, 13828790, 14597590, 19360306, 21858410, 42869249, 48400765, 67761071, 85738498, 96801530, 135522142, 214346245, 300084743, 338805355, 428692490, 600169486, 677610710, 1500423715, 2100593201, 3000847430, 4201186402, 10502966005, 21005932010]

約数ペア:

[(1, 21005932010), (2, 10502966005), (5, 4201186402), (7, 3000847430), (10, 2100593201), (14, 1500423715), (31, 677610710), (35, 600169486), (49, 428692490), (62, 338805355), (70, 300084743), (98, 214346245), (155, 135522142), (217, 96801530), (245, 85738498), (310, 67761071), (434, 48400765), (490, 42869249), (961, 21858410), (1085, 19360306), (1439, 14597590), (1519, 13828790), (1922, 10929205), (2170, 9680153), (2878, 7298795), (3038, 6914395), (4805, 4371682), (6727, 3122630), (7195, 2919518), (7595, 2765758), (9610, 2185841), (10073, 2085370), (13454, 1561315), (14390, 1459759), (15190, 1382879), (20146, 1042685), (29791, 705110), (33635, 624526), (44609, 470890), (47089, 446090), (50365, 417074), (59582, 352555), (67270, 312263), (70511, 297910), (89218, 235445), (94178, 223045), (100730, 208537), (141022, 148955)]