21344890

素因数分解:

$2^1\times 5^1\times 7^5\times {\mathrm{127}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 45176832

約数和(自身を除く): 23831942

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 127, 245, 254, 343, 490, 635, 686, 889, 1270, 1715, 1778, 2401, 3430, 4445, 4802, 6223, 8890, 12005, 12446, 16807, 24010, 31115, 33614, 43561, 62230, 84035, 87122, 168070, 217805, 304927, 435610, 609854, 1524635, 2134489, 3049270, 4268978, 10672445, 21344890]

約数ペア:

[(1, 21344890), (2, 10672445), (5, 4268978), (7, 3049270), (10, 2134489), (14, 1524635), (35, 609854), (49, 435610), (70, 304927), (98, 217805), (127, 168070), (245, 87122), (254, 84035), (343, 62230), (490, 43561), (635, 33614), (686, 31115), (889, 24010), (1270, 16807), (1715, 12446), (1778, 12005), (2401, 8890), (3430, 6223), (4445, 4802)]