21455856

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{4027}}^1$

素因数の和:4078

約数の個数: 60

約数和(自身を含む): 61684792

約数和(自身を除く): 40228936

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 48, 72, 74, 111, 144, 148, 222, 296, 333, 444, 592, 666, 888, 1332, 1776, 2664, 4027, 5328, 8054, 12081, 16108, 24162, 32216, 36243, 48324, 64432, 72486, 96648, 144972, 148999, 193296, 289944, 297998, 446997, 579888, 595996, 893994, 1191992, 1340991, 1787988, 2383984, 2681982, 3575976, 5363964, 7151952, 10727928, 21455856]

約数ペア:

[(1, 21455856), (2, 10727928), (3, 7151952), (4, 5363964), (6, 3575976), (8, 2681982), (9, 2383984), (12, 1787988), (16, 1340991), (18, 1191992), (24, 893994), (36, 595996), (37, 579888), (48, 446997), (72, 297998), (74, 289944), (111, 193296), (144, 148999), (148, 144972), (222, 96648), (296, 72486), (333, 64432), (444, 48324), (592, 36243), (666, 32216), (888, 24162), (1332, 16108), (1776, 12081), (2664, 8054), (4027, 5328)]