21798514385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{10993}}^1$

素因数の和:11465

約数の個数: 32

約数和(自身を含む): 28002509568

約数和(自身を除く): 6203995183

約数列:

[1, 5, 23, 43, 115, 215, 401, 989, 2005, 4945, 9223, 10993, 17243, 46115, 54965, 86215, 252839, 396589, 472699, 1264195, 1982945, 2363495, 4408193, 10872077, 22040965, 54360385, 101388439, 189552299, 506942195, 947761495, 4359702877, 21798514385]

約数ペア:

[(1, 21798514385), (5, 4359702877), (23, 947761495), (43, 506942195), (115, 189552299), (215, 101388439), (401, 54360385), (989, 22040965), (2005, 10872077), (4945, 4408193), (9223, 2363495), (10993, 1982945), (17243, 1264195), (46115, 472699), (54965, 396589), (86215, 252839)]