21131036367

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{344249}}^1$

素因数の和:344375

約数の個数: 32

約数和(自身を含む): 33488640000

約数和(自身を除く): 12357603633

約数列:

[1, 3, 7, 21, 37, 79, 111, 237, 259, 553, 777, 1659, 2923, 8769, 20461, 61383, 344249, 1032747, 2409743, 7229229, 12737213, 27195671, 38211639, 81587013, 89160491, 190369697, 267481473, 571109091, 1006239827, 3018719481, 7043678789, 21131036367]

約数ペア:

[(1, 21131036367), (3, 7043678789), (7, 3018719481), (21, 1006239827), (37, 571109091), (79, 267481473), (111, 190369697), (237, 89160491), (259, 81587013), (553, 38211639), (777, 27195671), (1659, 12737213), (2923, 7229229), (8769, 2409743), (20461, 1032747), (61383, 344249)]