21537436

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{601}}^1$

素因数の和:670

約数の個数: 36

約数和(自身を含む): 41398336

約数和(自身を除く): 19860900

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 289, 527, 578, 601, 1054, 1156, 1202, 2108, 2404, 8959, 10217, 17918, 18631, 20434, 35836, 37262, 40868, 74524, 173689, 316727, 347378, 633454, 694756, 1266908, 5384359, 10768718, 21537436]

約数ペア:

[(1, 21537436), (2, 10768718), (4, 5384359), (17, 1266908), (31, 694756), (34, 633454), (62, 347378), (68, 316727), (124, 173689), (289, 74524), (527, 40868), (578, 37262), (601, 35836), (1054, 20434), (1156, 18631), (1202, 17918), (2108, 10217), (2404, 8959)]