21927976

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 50889600

約数和(自身を除く): 28961624

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 37, 38, 56, 74, 76, 133, 148, 152, 259, 266, 296, 518, 532, 557, 703, 1036, 1064, 1114, 1406, 2072, 2228, 2812, 3899, 4456, 4921, 5624, 7798, 9842, 10583, 15596, 19684, 20609, 21166, 31192, 39368, 41218, 42332, 74081, 82436, 84664, 144263, 148162, 164872, 288526, 296324, 391571, 577052, 592648, 783142, 1154104, 1566284, 2740997, 3132568, 5481994, 10963988, 21927976]

約数ペア:

[(1, 21927976), (2, 10963988), (4, 5481994), (7, 3132568), (8, 2740997), (14, 1566284), (19, 1154104), (28, 783142), (37, 592648), (38, 577052), (56, 391571), (74, 296324), (76, 288526), (133, 164872), (148, 148162), (152, 144263), (259, 84664), (266, 82436), (296, 74081), (518, 42332), (532, 41218), (557, 39368), (703, 31192), (1036, 21166), (1064, 20609), (1114, 19684), (1406, 15596), (2072, 10583), (2228, 9842), (2812, 7798), (3899, 5624), (4456, 4921)]