21453936

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{953}}^1$

素因数の和:1038

約数の個数: 80

約数和(自身を含む): 64353024

約数和(自身を除く): 42899088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 67, 84, 112, 134, 168, 201, 268, 336, 402, 469, 536, 804, 938, 953, 1072, 1407, 1608, 1876, 1906, 2814, 2859, 3216, 3752, 3812, 5628, 5718, 6671, 7504, 7624, 11256, 11436, 13342, 15248, 20013, 22512, 22872, 26684, 40026, 45744, 53368, 63851, 80052, 106736, 127702, 160104, 191553, 255404, 320208, 383106, 446957, 510808, 766212, 893914, 1021616, 1340871, 1532424, 1787828, 2681742, 3064848, 3575656, 5363484, 7151312, 10726968, 21453936]

約数ペア:

[(1, 21453936), (2, 10726968), (3, 7151312), (4, 5363484), (6, 3575656), (7, 3064848), (8, 2681742), (12, 1787828), (14, 1532424), (16, 1340871), (21, 1021616), (24, 893914), (28, 766212), (42, 510808), (48, 446957), (56, 383106), (67, 320208), (84, 255404), (112, 191553), (134, 160104), (168, 127702), (201, 106736), (268, 80052), (336, 63851), (402, 53368), (469, 45744), (536, 40026), (804, 26684), (938, 22872), (953, 22512), (1072, 20013), (1407, 15248), (1608, 13342), (1876, 11436), (1906, 11256), (2814, 7624), (2859, 7504), (3216, 6671), (3752, 5718), (3812, 5628)]