19541756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 38384640

約数和(自身を除く): 18842884

約数列:

[1, 2, 4, 13, 26, 52, 67, 71, 79, 134, 142, 158, 268, 284, 316, 871, 923, 1027, 1742, 1846, 2054, 3484, 3692, 4108, 4757, 5293, 5609, 9514, 10586, 11218, 19028, 21172, 22436, 61841, 68809, 72917, 123682, 137618, 145834, 247364, 275236, 291668, 375803, 751606, 1503212, 4885439, 9770878, 19541756]

約数ペア:

[(1, 19541756), (2, 9770878), (4, 4885439), (13, 1503212), (26, 751606), (52, 375803), (67, 291668), (71, 275236), (79, 247364), (134, 145834), (142, 137618), (158, 123682), (268, 72917), (284, 68809), (316, 61841), (871, 22436), (923, 21172), (1027, 19028), (1742, 11218), (1846, 10586), (2054, 9514), (3484, 5609), (3692, 5293), (4108, 4757)]