20737964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 40896576

約数和(自身を除く): 20158612

約数列:

[1, 2, 4, 13, 26, 41, 52, 71, 82, 137, 142, 164, 274, 284, 533, 548, 923, 1066, 1781, 1846, 2132, 2911, 3562, 3692, 5617, 5822, 7124, 9727, 11234, 11644, 19454, 22468, 37843, 38908, 73021, 75686, 126451, 146042, 151372, 252902, 292084, 398807, 505804, 797614, 1595228, 5184491, 10368982, 20737964]

約数ペア:

[(1, 20737964), (2, 10368982), (4, 5184491), (13, 1595228), (26, 797614), (41, 505804), (52, 398807), (71, 292084), (82, 252902), (137, 151372), (142, 146042), (164, 126451), (274, 75686), (284, 73021), (533, 38908), (548, 37843), (923, 22468), (1066, 19454), (1781, 11644), (1846, 11234), (2132, 9727), (2911, 7124), (3562, 5822), (3692, 5617)]