20921286

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{733}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 43123968

約数和(自身を除く): 22202682

約数列:

[1, 2, 3, 6, 67, 71, 134, 142, 201, 213, 402, 426, 733, 1466, 2199, 4398, 4757, 9514, 14271, 28542, 49111, 52043, 98222, 104086, 147333, 156129, 294666, 312258, 3486881, 6973762, 10460643, 20921286]

約数ペア:

[(1, 20921286), (2, 10460643), (3, 6973762), (6, 3486881), (67, 312258), (71, 294666), (134, 156129), (142, 147333), (201, 104086), (213, 98222), (402, 52043), (426, 49111), (733, 28542), (1466, 14271), (2199, 9514), (4398, 4757)]