21204610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 46904832

約数和(自身を除く): 25700222

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 103, 119, 170, 173, 206, 238, 346, 515, 595, 721, 865, 1030, 1190, 1211, 1442, 1730, 1751, 2422, 2941, 3502, 3605, 5882, 6055, 7210, 8755, 12110, 12257, 14705, 17510, 17819, 20587, 24514, 29410, 35638, 41174, 61285, 89095, 102935, 122570, 124733, 178190, 205870, 249466, 302923, 605846, 623665, 1247330, 1514615, 2120461, 3029230, 4240922, 10602305, 21204610]

約数ペア:

[(1, 21204610), (2, 10602305), (5, 4240922), (7, 3029230), (10, 2120461), (14, 1514615), (17, 1247330), (34, 623665), (35, 605846), (70, 302923), (85, 249466), (103, 205870), (119, 178190), (170, 124733), (173, 122570), (206, 102935), (238, 89095), (346, 61285), (515, 41174), (595, 35638), (721, 29410), (865, 24514), (1030, 20587), (1190, 17819), (1211, 17510), (1442, 14705), (1730, 12257), (1751, 12110), (2422, 8755), (2941, 7210), (3502, 6055), (3605, 5882)]