21105939

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 30623040

約数和(自身を除く): 9517101

約数列:

[1, 3, 29, 41, 61, 87, 97, 123, 183, 291, 1189, 1769, 2501, 2813, 3567, 3977, 5307, 5917, 7503, 8439, 11931, 17751, 72529, 115333, 171593, 217587, 242597, 345999, 514779, 727791, 7035313, 21105939]

約数ペア:

[(1, 21105939), (3, 7035313), (29, 727791), (41, 514779), (61, 345999), (87, 242597), (97, 217587), (123, 171593), (183, 115333), (291, 72529), (1189, 17751), (1769, 11931), (2501, 8439), (2813, 7503), (3567, 5917), (3977, 5307)]