21554848

素因数分解:

$2^5\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2347}}^1$

素因数の和:2405

約数の個数: 48

約数和(自身を含む): 49702464

約数和(自身を除く): 28147616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 82, 112, 164, 224, 287, 328, 574, 656, 1148, 1312, 2296, 2347, 4592, 4694, 9184, 9388, 16429, 18776, 32858, 37552, 65716, 75104, 96227, 131432, 192454, 262864, 384908, 525728, 673589, 769816, 1347178, 1539632, 2694356, 3079264, 5388712, 10777424, 21554848]

約数ペア:

[(1, 21554848), (2, 10777424), (4, 5388712), (7, 3079264), (8, 2694356), (14, 1539632), (16, 1347178), (28, 769816), (32, 673589), (41, 525728), (56, 384908), (82, 262864), (112, 192454), (164, 131432), (224, 96227), (287, 75104), (328, 65716), (574, 37552), (656, 32858), (1148, 18776), (1312, 16429), (2296, 9388), (2347, 9184), (4592, 4694)]