21311325

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{1933}}^1$

素因数の和:1963

約数の個数: 54

約数和(自身を含む): 44425914

約数和(自身を除く): 23114589

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 147, 175, 225, 245, 315, 441, 525, 735, 1225, 1575, 1933, 2205, 3675, 5799, 9665, 11025, 13531, 17397, 28995, 40593, 48325, 67655, 86985, 94717, 121779, 144975, 202965, 284151, 338275, 434925, 473585, 608895, 852453, 1014825, 1420755, 2367925, 3044475, 4262265, 7103775, 21311325]

約数ペア:

[(1, 21311325), (3, 7103775), (5, 4262265), (7, 3044475), (9, 2367925), (15, 1420755), (21, 1014825), (25, 852453), (35, 608895), (45, 473585), (49, 434925), (63, 338275), (75, 284151), (105, 202965), (147, 144975), (175, 121779), (225, 94717), (245, 86985), (315, 67655), (441, 48325), (525, 40593), (735, 28995), (1225, 17397), (1575, 13531), (1933, 11025), (2205, 9665), (3675, 5799)]