156621591

素因数分解:

$3^2\times 7^2\times {\mathrm{439}}^1\times {\mathrm{809}}^1$

素因数の和:1268

約数の個数: 36

約数和(自身を含む): 264092400

約数和(自身を除く): 107470809

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 439, 441, 809, 1317, 2427, 3073, 3951, 5663, 7281, 9219, 16989, 21511, 27657, 39641, 50967, 64533, 118923, 193599, 355151, 356769, 1065453, 2486057, 3196359, 7458171, 17402399, 22374513, 52207197, 156621591]

約数ペア:

[(1, 156621591), (3, 52207197), (7, 22374513), (9, 17402399), (21, 7458171), (49, 3196359), (63, 2486057), (147, 1065453), (439, 356769), (441, 355151), (809, 193599), (1317, 118923), (2427, 64533), (3073, 50967), (3951, 39641), (5663, 27657), (7281, 21511), (9219, 16989)]