221423878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{7477}}^1$

素因数の和:7576

約数の個数: 32

約数和(自身を含む): 384429024

約数和(自身を除く): 163005146

約数列:

[1, 2, 13, 17, 26, 34, 67, 134, 221, 442, 871, 1139, 1742, 2278, 7477, 14807, 14954, 29614, 97201, 127109, 194402, 254218, 500959, 1001918, 1652417, 3304834, 6512467, 8516303, 13024934, 17032606, 110711939, 221423878]

約数ペア:

[(1, 221423878), (2, 110711939), (13, 17032606), (17, 13024934), (26, 8516303), (34, 6512467), (67, 3304834), (134, 1652417), (221, 1001918), (442, 500959), (871, 254218), (1139, 194402), (1742, 127109), (2278, 97201), (7477, 29614), (14807, 14954)]