21709376

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:391

約数の個数: 56

約数和(自身を含む): 47045880

約数和(自身を除く): 25336504

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 97, 104, 194, 208, 269, 388, 416, 538, 776, 832, 1076, 1261, 1552, 2152, 2522, 3104, 3497, 4304, 5044, 6208, 6994, 8608, 10088, 13988, 17216, 20176, 26093, 27976, 40352, 52186, 55952, 80704, 104372, 111904, 208744, 223808, 339209, 417488, 678418, 834976, 1356836, 1669952, 2713672, 5427344, 10854688, 21709376]

約数ペア:

[(1, 21709376), (2, 10854688), (4, 5427344), (8, 2713672), (13, 1669952), (16, 1356836), (26, 834976), (32, 678418), (52, 417488), (64, 339209), (97, 223808), (104, 208744), (194, 111904), (208, 104372), (269, 80704), (388, 55952), (416, 52186), (538, 40352), (776, 27976), (832, 26093), (1076, 20176), (1261, 17216), (1552, 13988), (2152, 10088), (2522, 8608), (3104, 6994), (3497, 6208), (4304, 5044)]