21376784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9343}}^1$

素因数の和:9375

約数の個数: 40

約数和(自身を含む): 48663552

約数和(自身を除く): 27286768

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9343, 18686, 37372, 74744, 102773, 121459, 149488, 205546, 242918, 411092, 485836, 822184, 971672, 1336049, 1644368, 1943344, 2672098, 5344196, 10688392, 21376784]

約数ペア:

[(1, 21376784), (2, 10688392), (4, 5344196), (8, 2672098), (11, 1943344), (13, 1644368), (16, 1336049), (22, 971672), (26, 822184), (44, 485836), (52, 411092), (88, 242918), (104, 205546), (143, 149488), (176, 121459), (208, 102773), (286, 74744), (572, 37372), (1144, 18686), (2288, 9343)]