21503808

素因数分解:

$2^6\times 3^2\times {\mathrm{37}}^1\times {\mathrm{1009}}^1$

素因数の和:1064

約数の個数: 84

約数和(自身を含む): 63365380

約数和(自身を除く): 41861572

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 64, 72, 74, 96, 111, 144, 148, 192, 222, 288, 296, 333, 444, 576, 592, 666, 888, 1009, 1184, 1332, 1776, 2018, 2368, 2664, 3027, 3552, 4036, 5328, 6054, 7104, 8072, 9081, 10656, 12108, 16144, 18162, 21312, 24216, 32288, 36324, 37333, 48432, 64576, 72648, 74666, 96864, 111999, 145296, 149332, 193728, 223998, 290592, 298664, 335997, 447996, 581184, 597328, 671994, 895992, 1194656, 1343988, 1791984, 2389312, 2687976, 3583968, 5375952, 7167936, 10751904, 21503808]

約数ペア:

[(1, 21503808), (2, 10751904), (3, 7167936), (4, 5375952), (6, 3583968), (8, 2687976), (9, 2389312), (12, 1791984), (16, 1343988), (18, 1194656), (24, 895992), (32, 671994), (36, 597328), (37, 581184), (48, 447996), (64, 335997), (72, 298664), (74, 290592), (96, 223998), (111, 193728), (144, 149332), (148, 145296), (192, 111999), (222, 96864), (288, 74666), (296, 72648), (333, 64576), (444, 48432), (576, 37333), (592, 36324), (666, 32288), (888, 24216), (1009, 21312), (1184, 18162), (1332, 16144), (1776, 12108), (2018, 10656), (2368, 9081), (2664, 8072), (3027, 7104), (3552, 6054), (4036, 5328)]