21416056

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 43655400

約数和(自身を除く): 22239344

約数列:

[1, 2, 4, 8, 17, 34, 59, 68, 118, 136, 157, 236, 289, 314, 472, 578, 628, 1003, 1156, 1256, 2006, 2312, 2669, 4012, 5338, 8024, 9263, 10676, 17051, 18526, 21352, 34102, 37052, 45373, 68204, 74104, 90746, 136408, 157471, 181492, 314942, 362984, 629884, 1259768, 2677007, 5354014, 10708028, 21416056]

約数ペア:

[(1, 21416056), (2, 10708028), (4, 5354014), (8, 2677007), (17, 1259768), (34, 629884), (59, 362984), (68, 314942), (118, 181492), (136, 157471), (157, 136408), (236, 90746), (289, 74104), (314, 68204), (472, 45373), (578, 37052), (628, 34102), (1003, 21352), (1156, 18526), (1256, 17051), (2006, 10676), (2312, 9263), (2669, 8024), (4012, 5338)]