21948784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 51184224

約数和(自身を除く): 29235440

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 53, 88, 104, 106, 143, 176, 181, 208, 212, 286, 362, 424, 572, 583, 689, 724, 848, 1144, 1166, 1378, 1448, 1991, 2288, 2332, 2353, 2756, 2896, 3982, 4664, 4706, 5512, 7579, 7964, 9328, 9412, 9593, 11024, 15158, 15928, 18824, 19186, 25883, 30316, 31856, 37648, 38372, 51766, 60632, 76744, 103532, 105523, 121264, 124709, 153488, 207064, 211046, 249418, 414128, 422092, 498836, 844184, 997672, 1371799, 1688368, 1995344, 2743598, 5487196, 10974392, 21948784]

約数ペア:

[(1, 21948784), (2, 10974392), (4, 5487196), (8, 2743598), (11, 1995344), (13, 1688368), (16, 1371799), (22, 997672), (26, 844184), (44, 498836), (52, 422092), (53, 414128), (88, 249418), (104, 211046), (106, 207064), (143, 153488), (176, 124709), (181, 121264), (208, 105523), (212, 103532), (286, 76744), (362, 60632), (424, 51766), (572, 38372), (583, 37648), (689, 31856), (724, 30316), (848, 25883), (1144, 19186), (1166, 18824), (1378, 15928), (1448, 15158), (1991, 11024), (2288, 9593), (2332, 9412), (2353, 9328), (2756, 7964), (2896, 7579), (3982, 5512), (4664, 4706)]