19631804

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 38384640

約数和(自身を除く): 18752836

約数列:

[1, 2, 4, 17, 31, 34, 62, 67, 68, 124, 134, 139, 268, 278, 527, 556, 1054, 1139, 2077, 2108, 2278, 2363, 4154, 4309, 4556, 4726, 8308, 8618, 9313, 9452, 17236, 18626, 35309, 37252, 70618, 73253, 141236, 146506, 158321, 288703, 293012, 316642, 577406, 633284, 1154812, 4907951, 9815902, 19631804]

約数ペア:

[(1, 19631804), (2, 9815902), (4, 4907951), (17, 1154812), (31, 633284), (34, 577406), (62, 316642), (67, 293012), (68, 288703), (124, 158321), (134, 146506), (139, 141236), (268, 73253), (278, 70618), (527, 37252), (556, 35309), (1054, 18626), (1139, 17236), (2077, 9452), (2108, 9313), (2278, 8618), (2363, 8308), (4154, 4726), (4309, 4556)]