21181056

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4243}}^1$

素因数の和:4273

約数の個数: 64

約数和(自身を含む): 60604320

約数和(自身を除く): 39423264

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 312, 384, 416, 624, 832, 1248, 1664, 2496, 4243, 4992, 8486, 12729, 16972, 25458, 33944, 50916, 55159, 67888, 101832, 110318, 135776, 165477, 203664, 220636, 271552, 330954, 407328, 441272, 543104, 661908, 814656, 882544, 1323816, 1629312, 1765088, 2647632, 3530176, 5295264, 7060352, 10590528, 21181056]

約数ペア:

[(1, 21181056), (2, 10590528), (3, 7060352), (4, 5295264), (6, 3530176), (8, 2647632), (12, 1765088), (13, 1629312), (16, 1323816), (24, 882544), (26, 814656), (32, 661908), (39, 543104), (48, 441272), (52, 407328), (64, 330954), (78, 271552), (96, 220636), (104, 203664), (128, 165477), (156, 135776), (192, 110318), (208, 101832), (312, 67888), (384, 55159), (416, 50916), (624, 33944), (832, 25458), (1248, 16972), (1664, 12729), (2496, 8486), (4243, 4992)]