21002600

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5527}}^1$

素因数の和:5562

約数の個数: 48

約数和(自身を含む): 51410400

約数和(自身を除く): 30407800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5527, 11054, 22108, 27635, 44216, 55270, 105013, 110540, 138175, 210026, 221080, 276350, 420052, 525065, 552700, 840104, 1050130, 1105400, 2100260, 2625325, 4200520, 5250650, 10501300, 21002600]

約数ペア:

[(1, 21002600), (2, 10501300), (4, 5250650), (5, 4200520), (8, 2625325), (10, 2100260), (19, 1105400), (20, 1050130), (25, 840104), (38, 552700), (40, 525065), (50, 420052), (76, 276350), (95, 221080), (100, 210026), (152, 138175), (190, 110540), (200, 105013), (380, 55270), (475, 44216), (760, 27635), (950, 22108), (1900, 11054), (3800, 5527)]