216647487

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^3\times {\mathrm{47}}^1$

素因数の和:150

約数の個数: 64

約数和(自身を含む): 387993600

約数和(自身を除く): 171346113

約数列:

[1, 3, 7, 9, 21, 27, 29, 47, 63, 87, 141, 189, 203, 261, 329, 423, 609, 783, 841, 987, 1269, 1363, 1827, 2523, 2961, 4089, 5481, 5887, 7569, 8883, 9541, 12267, 17661, 22707, 24389, 28623, 36801, 39527, 52983, 73167, 85869, 118581, 158949, 170723, 219501, 257607, 276689, 355743, 512169, 658503, 830067, 1067229, 1146283, 1536507, 2490201, 3438849, 4609521, 7470603, 8023981, 10316547, 24071943, 30949641, 72215829, 216647487]

約数ペア:

[(1, 216647487), (3, 72215829), (7, 30949641), (9, 24071943), (21, 10316547), (27, 8023981), (29, 7470603), (47, 4609521), (63, 3438849), (87, 2490201), (141, 1536507), (189, 1146283), (203, 1067229), (261, 830067), (329, 658503), (423, 512169), (609, 355743), (783, 276689), (841, 257607), (987, 219501), (1269, 170723), (1363, 158949), (1827, 118581), (2523, 85869), (2961, 73167), (4089, 52983), (5481, 39527), (5887, 36801), (7569, 28623), (8883, 24389), (9541, 22707), (12267, 17661)]