21569964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{101}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 56257488

約数和(自身を除く): 34687524

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 101, 111, 148, 156, 202, 222, 303, 404, 444, 481, 606, 962, 1212, 1313, 1369, 1443, 1924, 2626, 2738, 2886, 3737, 3939, 4107, 5252, 5476, 5772, 7474, 7878, 8214, 11211, 14948, 15756, 16428, 17797, 22422, 35594, 44844, 48581, 53391, 71188, 97162, 106782, 138269, 145743, 194324, 213564, 276538, 291486, 414807, 553076, 582972, 829614, 1659228, 1797497, 3594994, 5392491, 7189988, 10784982, 21569964]

約数ペア:

[(1, 21569964), (2, 10784982), (3, 7189988), (4, 5392491), (6, 3594994), (12, 1797497), (13, 1659228), (26, 829614), (37, 582972), (39, 553076), (52, 414807), (74, 291486), (78, 276538), (101, 213564), (111, 194324), (148, 145743), (156, 138269), (202, 106782), (222, 97162), (303, 71188), (404, 53391), (444, 48581), (481, 44844), (606, 35594), (962, 22422), (1212, 17797), (1313, 16428), (1369, 15756), (1443, 14948), (1924, 11211), (2626, 8214), (2738, 7878), (2886, 7474), (3737, 5772), (3939, 5476), (4107, 5252)]