21975975

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4651}}^1$

素因数の和:4677

約数の個数: 48

約数和(自身を含む): 46147840

約数和(自身を除く): 24171865

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4651, 4725, 13953, 23255, 32557, 41859, 69765, 97671, 116275, 125577, 162785, 209295, 293013, 348825, 488355, 627885, 813925, 879039, 1046475, 1465065, 2441775, 3139425, 4395195, 7325325, 21975975]

約数ペア:

[(1, 21975975), (3, 7325325), (5, 4395195), (7, 3139425), (9, 2441775), (15, 1465065), (21, 1046475), (25, 879039), (27, 813925), (35, 627885), (45, 488355), (63, 348825), (75, 293013), (105, 209295), (135, 162785), (175, 125577), (189, 116275), (225, 97671), (315, 69765), (525, 41859), (675, 32557), (945, 23255), (1575, 13953), (4651, 4725)]