21031824

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{653}}^1$

素因数の和:736

約数の個数: 80

約数和(自身を含む): 60335424

約数和(自身を除く): 39303600

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 61, 66, 88, 122, 132, 176, 183, 244, 264, 366, 488, 528, 653, 671, 732, 976, 1306, 1342, 1464, 1959, 2013, 2612, 2684, 2928, 3918, 4026, 5224, 5368, 7183, 7836, 8052, 10448, 10736, 14366, 15672, 16104, 21549, 28732, 31344, 32208, 39833, 43098, 57464, 79666, 86196, 114928, 119499, 159332, 172392, 238998, 318664, 344784, 438163, 477996, 637328, 876326, 955992, 1314489, 1752652, 1911984, 2628978, 3505304, 5257956, 7010608, 10515912, 21031824]

約数ペア:

[(1, 21031824), (2, 10515912), (3, 7010608), (4, 5257956), (6, 3505304), (8, 2628978), (11, 1911984), (12, 1752652), (16, 1314489), (22, 955992), (24, 876326), (33, 637328), (44, 477996), (48, 438163), (61, 344784), (66, 318664), (88, 238998), (122, 172392), (132, 159332), (176, 119499), (183, 114928), (244, 86196), (264, 79666), (366, 57464), (488, 43098), (528, 39833), (653, 32208), (671, 31344), (732, 28732), (976, 21549), (1306, 16104), (1342, 15672), (1464, 14366), (1959, 10736), (2013, 10448), (2612, 8052), (2684, 7836), (2928, 7183), (3918, 5368), (4026, 5224)]