21776456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 47401200

約数和(自身を除く): 25624744

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 109, 113, 136, 218, 221, 226, 436, 442, 452, 872, 884, 904, 1417, 1469, 1768, 1853, 1921, 2834, 2938, 3706, 3842, 5668, 5876, 7412, 7684, 11336, 11752, 12317, 14824, 15368, 24089, 24634, 24973, 48178, 49268, 49946, 96356, 98536, 99892, 160121, 192712, 199784, 209389, 320242, 418778, 640484, 837556, 1280968, 1675112, 2722057, 5444114, 10888228, 21776456]

約数ペア:

[(1, 21776456), (2, 10888228), (4, 5444114), (8, 2722057), (13, 1675112), (17, 1280968), (26, 837556), (34, 640484), (52, 418778), (68, 320242), (104, 209389), (109, 199784), (113, 192712), (136, 160121), (218, 99892), (221, 98536), (226, 96356), (436, 49946), (442, 49268), (452, 48178), (872, 24973), (884, 24634), (904, 24089), (1417, 15368), (1469, 14824), (1768, 12317), (1853, 11752), (1921, 11336), (2834, 7684), (2938, 7412), (3706, 5876), (3842, 5668)]