21405248

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{607}}^1$

素因数の和:667

約数の個数: 56

約数和(自身を含む): 46329600

約数和(自身を除く): 24924352

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 76, 116, 152, 232, 304, 464, 551, 607, 608, 928, 1102, 1214, 1216, 1856, 2204, 2428, 4408, 4856, 8816, 9712, 11533, 17603, 17632, 19424, 23066, 35206, 35264, 38848, 46132, 70412, 92264, 140824, 184528, 281648, 334457, 369056, 563296, 668914, 738112, 1126592, 1337828, 2675656, 5351312, 10702624, 21405248]

約数ペア:

[(1, 21405248), (2, 10702624), (4, 5351312), (8, 2675656), (16, 1337828), (19, 1126592), (29, 738112), (32, 668914), (38, 563296), (58, 369056), (64, 334457), (76, 281648), (116, 184528), (152, 140824), (232, 92264), (304, 70412), (464, 46132), (551, 38848), (607, 35264), (608, 35206), (928, 23066), (1102, 19424), (1214, 17632), (1216, 17603), (1856, 11533), (2204, 9712), (2428, 8816), (4408, 4856)]