21881454

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 52157952

約数和(自身を除く): 30276498

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 97, 123, 131, 194, 246, 262, 287, 291, 393, 574, 582, 679, 786, 861, 917, 1358, 1722, 1834, 2037, 2751, 3977, 4074, 5371, 5502, 7954, 10742, 11931, 12707, 16113, 23862, 25414, 27839, 32226, 37597, 38121, 55678, 75194, 76242, 83517, 88949, 112791, 167034, 177898, 225582, 266847, 520987, 533694, 1041974, 1562961, 3125922, 3646909, 7293818, 10940727, 21881454]

約数ペア:

[(1, 21881454), (2, 10940727), (3, 7293818), (6, 3646909), (7, 3125922), (14, 1562961), (21, 1041974), (41, 533694), (42, 520987), (82, 266847), (97, 225582), (123, 177898), (131, 167034), (194, 112791), (246, 88949), (262, 83517), (287, 76242), (291, 75194), (393, 55678), (574, 38121), (582, 37597), (679, 32226), (786, 27839), (861, 25414), (917, 23862), (1358, 16113), (1722, 12707), (1834, 11931), (2037, 10742), (2751, 7954), (3977, 5502), (4074, 5371)]