2171925

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{197}}^1$

素因数の和:227

約数の個数: 54

約数和(自身を含む): 4548258

約数和(自身を除く): 2376333

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 147, 175, 197, 225, 245, 315, 441, 525, 591, 735, 985, 1225, 1379, 1575, 1773, 2205, 2955, 3675, 4137, 4925, 6895, 8865, 9653, 11025, 12411, 14775, 20685, 28959, 34475, 44325, 48265, 62055, 86877, 103425, 144795, 241325, 310275, 434385, 723975, 2171925]

約数ペア:

[(1, 2171925), (3, 723975), (5, 434385), (7, 310275), (9, 241325), (15, 144795), (21, 103425), (25, 86877), (35, 62055), (45, 48265), (49, 44325), (63, 34475), (75, 28959), (105, 20685), (147, 14775), (175, 12411), (197, 11025), (225, 9653), (245, 8865), (315, 6895), (441, 4925), (525, 4137), (591, 3675), (735, 2955), (985, 2205), (1225, 1773), (1379, 1575)]