18172388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 36966384

約数和(自身を除く): 18793996

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 61, 68, 122, 221, 244, 337, 442, 674, 793, 884, 1037, 1348, 1586, 2074, 3172, 4148, 4381, 5729, 8762, 11458, 13481, 17524, 20557, 22916, 26962, 41114, 53924, 74477, 82228, 148954, 267241, 297908, 349469, 534482, 698938, 1068964, 1397876, 4543097, 9086194, 18172388]

約数ペア:

[(1, 18172388), (2, 9086194), (4, 4543097), (13, 1397876), (17, 1068964), (26, 698938), (34, 534482), (52, 349469), (61, 297908), (68, 267241), (122, 148954), (221, 82228), (244, 74477), (337, 53924), (442, 41114), (674, 26962), (793, 22916), (884, 20557), (1037, 17524), (1348, 13481), (1586, 11458), (2074, 8762), (3172, 5729), (4148, 4381)]