25193889

素因数分解:

$3^3\times 7^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:299

約数の個数: 48

約数和(自身を含む): 44049600

約数和(自身を除く): 18855711

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 137, 139, 147, 189, 411, 417, 441, 959, 973, 1233, 1251, 1323, 2877, 2919, 3699, 3753, 6713, 6811, 8631, 8757, 19043, 20139, 20433, 25893, 26271, 57129, 60417, 61299, 133301, 171387, 181251, 183897, 399903, 514161, 933107, 1199709, 2799321, 3599127, 8397963, 25193889]

約数ペア:

[(1, 25193889), (3, 8397963), (7, 3599127), (9, 2799321), (21, 1199709), (27, 933107), (49, 514161), (63, 399903), (137, 183897), (139, 181251), (147, 171387), (189, 133301), (411, 61299), (417, 60417), (441, 57129), (959, 26271), (973, 25893), (1233, 20433), (1251, 20139), (1323, 19043), (2877, 8757), (2919, 8631), (3699, 6811), (3753, 6713)]