31218387

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 45957120

約数和(自身を除く): 14738733

約数列:

[1, 3, 19, 43, 47, 57, 129, 141, 271, 813, 817, 893, 2021, 2451, 2679, 5149, 6063, 11653, 12737, 15447, 34959, 38211, 38399, 115197, 221407, 242003, 547691, 664221, 726009, 1643073, 10406129, 31218387]

約数ペア:

[(1, 31218387), (3, 10406129), (19, 1643073), (43, 726009), (47, 664221), (57, 547691), (129, 242003), (141, 221407), (271, 115197), (813, 38399), (817, 38211), (893, 34959), (2021, 15447), (2451, 12737), (2679, 11653), (5149, 6063)]