21357936

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{2089}}^1$

素因数の和:2174

約数の個数: 60

約数和(自身を含む): 60643440

約数和(自身を除く): 39285504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 2089, 2556, 3408, 4178, 5112, 6267, 8356, 10224, 12534, 16712, 18801, 25068, 33424, 37602, 50136, 75204, 100272, 148319, 150408, 296638, 300816, 444957, 593276, 889914, 1186552, 1334871, 1779828, 2373104, 2669742, 3559656, 5339484, 7119312, 10678968, 21357936]

約数ペア:

[(1, 21357936), (2, 10678968), (3, 7119312), (4, 5339484), (6, 3559656), (8, 2669742), (9, 2373104), (12, 1779828), (16, 1334871), (18, 1186552), (24, 889914), (36, 593276), (48, 444957), (71, 300816), (72, 296638), (142, 150408), (144, 148319), (213, 100272), (284, 75204), (426, 50136), (568, 37602), (639, 33424), (852, 25068), (1136, 18801), (1278, 16712), (1704, 12534), (2089, 10224), (2556, 8356), (3408, 6267), (4178, 5112)]