21984993

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{373}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 34108800

約数和(自身を除く): 12123807

約数列:

[1, 3, 9, 27, 37, 59, 111, 177, 333, 373, 531, 999, 1119, 1593, 2183, 3357, 6549, 10071, 13801, 19647, 22007, 41403, 58941, 66021, 124209, 198063, 372627, 594189, 814259, 2442777, 7328331, 21984993]

約数ペア:

[(1, 21984993), (3, 7328331), (9, 2442777), (27, 814259), (37, 594189), (59, 372627), (111, 198063), (177, 124209), (333, 66021), (373, 58941), (531, 41403), (999, 22007), (1119, 19647), (1593, 13801), (2183, 10071), (3357, 6549)]