21309080403

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 31650877440

約数和(自身を除く): 10341797037

約数列:

[1, 3, 13, 39, 71, 73, 213, 219, 271, 389, 813, 923, 949, 1167, 2769, 2847, 3523, 5057, 5183, 10569, 15171, 15549, 19241, 19783, 27619, 28397, 57723, 59349, 67379, 82857, 85191, 105419, 202137, 250133, 257179, 316257, 359047, 369161, 750399, 771537, 1077141, 1107483, 1370447, 1404593, 2016187, 4111341, 4213779, 6048561, 7484749, 7695587, 18259709, 22454247, 23086761, 26210431, 54779127, 78631293, 97301737, 100042631, 291905211, 300127893, 546386677, 1639160031, 7103026801, 21309080403]

約数ペア:

[(1, 21309080403), (3, 7103026801), (13, 1639160031), (39, 546386677), (71, 300127893), (73, 291905211), (213, 100042631), (219, 97301737), (271, 78631293), (389, 54779127), (813, 26210431), (923, 23086761), (949, 22454247), (1167, 18259709), (2769, 7695587), (2847, 7484749), (3523, 6048561), (5057, 4213779), (5183, 4111341), (10569, 2016187), (15171, 1404593), (15549, 1370447), (19241, 1107483), (19783, 1077141), (27619, 771537), (28397, 750399), (57723, 369161), (59349, 359047), (67379, 316257), (82857, 257179), (85191, 250133), (105419, 202137)]