12780821979

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{19571}}^1$

素因数の和:19685

約数の個数: 48

約数和(自身を含む): 20282855040

約数和(自身を除く): 7502033061

約数列:

[1, 3, 9, 19, 27, 57, 67, 171, 201, 361, 513, 603, 1083, 1273, 1809, 3249, 3819, 9747, 11457, 19571, 24187, 34371, 58713, 72561, 176139, 217683, 371849, 528417, 653049, 1115547, 1311257, 3346641, 3933771, 7065131, 10039923, 11801313, 21195393, 24913883, 35403939, 63586179, 74741649, 190758537, 224224947, 473363777, 672674841, 1420091331, 4260273993, 12780821979]

約数ペア:

[(1, 12780821979), (3, 4260273993), (9, 1420091331), (19, 672674841), (27, 473363777), (57, 224224947), (67, 190758537), (171, 74741649), (201, 63586179), (361, 35403939), (513, 24913883), (603, 21195393), (1083, 11801313), (1273, 10039923), (1809, 7065131), (3249, 3933771), (3819, 3346641), (9747, 1311257), (11457, 1115547), (19571, 653049), (24187, 528417), (34371, 371849), (58713, 217683), (72561, 176139)]