221384605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 292118400

約数和(自身を除く): 70733795

約数列:

[1, 5, 13, 65, 107, 139, 229, 535, 695, 1145, 1391, 1807, 2977, 6955, 9035, 14873, 14885, 24503, 31831, 74365, 122515, 159155, 193349, 318539, 413803, 966745, 1592695, 2069015, 3405917, 17029585, 44276921, 221384605]

約数ペア:

[(1, 221384605), (5, 44276921), (13, 17029585), (65, 3405917), (107, 2069015), (139, 1592695), (229, 966745), (535, 413803), (695, 318539), (1145, 193349), (1391, 159155), (1807, 122515), (2977, 74365), (6955, 31831), (9035, 24503), (14873, 14885)]