81430461

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 143769600

約数和(自身を除く): 62339139

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 89, 103, 141, 189, 267, 309, 329, 423, 623, 721, 801, 927, 987, 1269, 1869, 2163, 2403, 2781, 2961, 4183, 4841, 5607, 6489, 8883, 9167, 12549, 14523, 16821, 19467, 27501, 29281, 33887, 37647, 43569, 64169, 82503, 87843, 101661, 112941, 130707, 192507, 247509, 263529, 304983, 430849, 577521, 790587, 914949, 1292547, 1732563, 3015943, 3877641, 9047829, 11632923, 27143487, 81430461]

約数ペア:

[(1, 81430461), (3, 27143487), (7, 11632923), (9, 9047829), (21, 3877641), (27, 3015943), (47, 1732563), (63, 1292547), (89, 914949), (103, 790587), (141, 577521), (189, 430849), (267, 304983), (309, 263529), (329, 247509), (423, 192507), (623, 130707), (721, 112941), (801, 101661), (927, 87843), (987, 82503), (1269, 64169), (1869, 43569), (2163, 37647), (2403, 33887), (2781, 29281), (2961, 27501), (4183, 19467), (4841, 16821), (5607, 14523), (6489, 12549), (8883, 9167)]