20541204

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:597

約数の個数: 72

約数和(自身を含む): 55692000

約数和(自身を除く): 35150796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 59, 76, 114, 118, 171, 177, 228, 236, 342, 354, 509, 531, 684, 708, 1018, 1062, 1121, 1527, 2036, 2124, 2242, 3054, 3363, 4484, 4581, 6108, 6726, 9162, 9671, 10089, 13452, 18324, 19342, 20178, 29013, 30031, 38684, 40356, 58026, 60062, 87039, 90093, 116052, 120124, 174078, 180186, 270279, 348156, 360372, 540558, 570589, 1081116, 1141178, 1711767, 2282356, 3423534, 5135301, 6847068, 10270602, 20541204]

約数ペア:

[(1, 20541204), (2, 10270602), (3, 6847068), (4, 5135301), (6, 3423534), (9, 2282356), (12, 1711767), (18, 1141178), (19, 1081116), (36, 570589), (38, 540558), (57, 360372), (59, 348156), (76, 270279), (114, 180186), (118, 174078), (171, 120124), (177, 116052), (228, 90093), (236, 87039), (342, 60062), (354, 58026), (509, 40356), (531, 38684), (684, 30031), (708, 29013), (1018, 20178), (1062, 19342), (1121, 18324), (1527, 13452), (2036, 10089), (2124, 9671), (2242, 9162), (3054, 6726), (3363, 6108), (4484, 4581)]