19211493

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 30627072

約数和(自身を除く): 11415579

約数列:

[1, 3, 7, 21, 41, 53, 123, 159, 287, 371, 421, 861, 1113, 1263, 2173, 2947, 6519, 8841, 15211, 17261, 22313, 45633, 51783, 66939, 120827, 156191, 362481, 468573, 914833, 2744499, 6403831, 19211493]

約数ペア:

[(1, 19211493), (3, 6403831), (7, 2744499), (21, 914833), (41, 468573), (53, 362481), (123, 156191), (159, 120827), (287, 66939), (371, 51783), (421, 45633), (861, 22313), (1113, 17261), (1263, 15211), (2173, 8841), (2947, 6519)]