21874242

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 28203198

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 89, 137, 138, 178, 267, 274, 299, 411, 534, 598, 822, 897, 1157, 1781, 1794, 2047, 2314, 3151, 3471, 3562, 4094, 5343, 6141, 6302, 6942, 9453, 10686, 12193, 12282, 18906, 24386, 26611, 36579, 40963, 53222, 73158, 79833, 81926, 122889, 158509, 159666, 245778, 280439, 317018, 475527, 560878, 841317, 951054, 1682634, 3645707, 7291414, 10937121, 21874242]

約数ペア:

[(1, 21874242), (2, 10937121), (3, 7291414), (6, 3645707), (13, 1682634), (23, 951054), (26, 841317), (39, 560878), (46, 475527), (69, 317018), (78, 280439), (89, 245778), (137, 159666), (138, 158509), (178, 122889), (267, 81926), (274, 79833), (299, 73158), (411, 53222), (534, 40963), (598, 36579), (822, 26611), (897, 24386), (1157, 18906), (1781, 12282), (1794, 12193), (2047, 10686), (2314, 9453), (3151, 6942), (3471, 6302), (3562, 6141), (4094, 5343)]