21560328

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^1\times {\mathrm{4909}}^1$

素因数の和:4982

約数の個数: 48

約数和(自身を含む): 59361900

約数和(自身を除く): 37801572

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 72, 122, 183, 244, 366, 488, 549, 732, 1098, 1464, 2196, 4392, 4909, 9818, 14727, 19636, 29454, 39272, 44181, 58908, 88362, 117816, 176724, 299449, 353448, 598898, 898347, 1197796, 1796694, 2395592, 2695041, 3593388, 5390082, 7186776, 10780164, 21560328]

約数ペア:

[(1, 21560328), (2, 10780164), (3, 7186776), (4, 5390082), (6, 3593388), (8, 2695041), (9, 2395592), (12, 1796694), (18, 1197796), (24, 898347), (36, 598898), (61, 353448), (72, 299449), (122, 176724), (183, 117816), (244, 88362), (366, 58908), (488, 44181), (549, 39272), (732, 29454), (1098, 19636), (1464, 14727), (2196, 9818), (4392, 4909)]