221235716

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1933}}^1$

素因数の和:2052

約数の個数: 48

約数和(自身を含む): 436681728

約数和(自身を除く): 215446012

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 71, 124, 142, 284, 403, 806, 923, 1612, 1846, 1933, 2201, 3692, 3866, 4402, 7732, 8804, 25129, 28613, 50258, 57226, 59923, 100516, 114452, 119846, 137243, 239692, 274486, 548972, 778999, 1557998, 1784159, 3115996, 3568318, 4254533, 7136636, 8509066, 17018132, 55308929, 110617858, 221235716]

約数ペア:

[(1, 221235716), (2, 110617858), (4, 55308929), (13, 17018132), (26, 8509066), (31, 7136636), (52, 4254533), (62, 3568318), (71, 3115996), (124, 1784159), (142, 1557998), (284, 778999), (403, 548972), (806, 274486), (923, 239692), (1612, 137243), (1846, 119846), (1933, 114452), (2201, 100516), (3692, 59923), (3866, 57226), (4402, 50258), (7732, 28613), (8804, 25129)]