209968226

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1723}}^1$

素因数の和:1890

約数の個数: 32

約数和(自身を含む): 350454720

約数和(自身を除く): 140486494

約数列:

[1, 2, 13, 26, 43, 86, 109, 218, 559, 1118, 1417, 1723, 2834, 3446, 4687, 9374, 22399, 44798, 60931, 74089, 121862, 148178, 187807, 375614, 963157, 1926314, 2441491, 4882982, 8075701, 16151402, 104984113, 209968226]

約数ペア:

[(1, 209968226), (2, 104984113), (13, 16151402), (26, 8075701), (43, 4882982), (86, 2441491), (109, 1926314), (218, 963157), (559, 375614), (1118, 187807), (1417, 148178), (1723, 121862), (2834, 74089), (3446, 60931), (4687, 44798), (9374, 22399)]