21629960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 55301400

約数和(自身を除く): 33671440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 109, 110, 121, 164, 205, 218, 220, 242, 328, 410, 436, 440, 451, 484, 545, 605, 820, 872, 902, 968, 1090, 1199, 1210, 1640, 1804, 2180, 2255, 2398, 2420, 3608, 4360, 4469, 4510, 4796, 4840, 4961, 5995, 8938, 9020, 9592, 9922, 11990, 13189, 17876, 18040, 19844, 22345, 23980, 24805, 26378, 35752, 39688, 44690, 47960, 49159, 49610, 52756, 65945, 89380, 98318, 99220, 105512, 131890, 178760, 196636, 198440, 245795, 263780, 393272, 491590, 527560, 540749, 983180, 1081498, 1966360, 2162996, 2703745, 4325992, 5407490, 10814980, 21629960]

約数ペア:

[(1, 21629960), (2, 10814980), (4, 5407490), (5, 4325992), (8, 2703745), (10, 2162996), (11, 1966360), (20, 1081498), (22, 983180), (40, 540749), (41, 527560), (44, 491590), (55, 393272), (82, 263780), (88, 245795), (109, 198440), (110, 196636), (121, 178760), (164, 131890), (205, 105512), (218, 99220), (220, 98318), (242, 89380), (328, 65945), (410, 52756), (436, 49610), (440, 49159), (451, 47960), (484, 44690), (545, 39688), (605, 35752), (820, 26378), (872, 24805), (902, 23980), (968, 22345), (1090, 19844), (1199, 18040), (1210, 17876), (1640, 13189), (1804, 11990), (2180, 9922), (2255, 9592), (2398, 9020), (2420, 8938), (3608, 5995), (4360, 4961), (4469, 4840), (4510, 4796)]