20528036163

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{1187}}^1$

素因数の和:1397

約数の個数: 72

約数和(自身を含む): 32335720560

約数和(自身を除く): 11807684397

約数列:

[1, 3, 9, 17, 51, 61, 109, 153, 183, 289, 327, 549, 867, 981, 1037, 1187, 1853, 2601, 3111, 3561, 5559, 6649, 9333, 10683, 16677, 17629, 19947, 20179, 31501, 52887, 59841, 60537, 72407, 94503, 113033, 129383, 158661, 181611, 217221, 283509, 339099, 343043, 388149, 651663, 1017297, 1029129, 1164447, 1230919, 1921561, 2199511, 3087387, 3692757, 5764683, 6598533, 7892363, 11078271, 17294049, 19795599, 20925623, 23677089, 37391687, 62776869, 71031267, 112175061, 134170171, 188330607, 336525183, 402510513, 1207531539, 2280892907, 6842678721, 20528036163]

約数ペア:

[(1, 20528036163), (3, 6842678721), (9, 2280892907), (17, 1207531539), (51, 402510513), (61, 336525183), (109, 188330607), (153, 134170171), (183, 112175061), (289, 71031267), (327, 62776869), (549, 37391687), (867, 23677089), (981, 20925623), (1037, 19795599), (1187, 17294049), (1853, 11078271), (2601, 7892363), (3111, 6598533), (3561, 5764683), (5559, 3692757), (6649, 3087387), (9333, 2199511), (10683, 1921561), (16677, 1230919), (17629, 1164447), (19947, 1029129), (20179, 1017297), (31501, 651663), (52887, 388149), (59841, 343043), (60537, 339099), (72407, 283509), (94503, 217221), (113033, 181611), (129383, 158661)]