21242624

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{491}}^1$

素因数の和:533

約数の個数: 54

約数和(自身を含む): 46008396

約数和(自身を除く): 24765772

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 256, 338, 416, 491, 676, 832, 982, 1352, 1664, 1964, 2704, 3328, 3928, 5408, 6383, 7856, 10816, 12766, 15712, 21632, 25532, 31424, 43264, 51064, 62848, 82979, 102128, 125696, 165958, 204256, 331916, 408512, 663832, 817024, 1327664, 1634048, 2655328, 5310656, 10621312, 21242624]

約数ペア:

[(1, 21242624), (2, 10621312), (4, 5310656), (8, 2655328), (13, 1634048), (16, 1327664), (26, 817024), (32, 663832), (52, 408512), (64, 331916), (104, 204256), (128, 165958), (169, 125696), (208, 102128), (256, 82979), (338, 62848), (416, 51064), (491, 43264), (676, 31424), (832, 25532), (982, 21632), (1352, 15712), (1664, 12766), (1964, 10816), (2704, 7856), (3328, 6383), (3928, 5408)]