21041482

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 40629600

約数和(自身を除く): 19588118

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 131, 149, 154, 262, 298, 539, 917, 1043, 1078, 1441, 1639, 1834, 2086, 2882, 3278, 6419, 7301, 10087, 11473, 12838, 14602, 19519, 20174, 22946, 39038, 70609, 80311, 136633, 141218, 160622, 214709, 273266, 429418, 956431, 1502963, 1912862, 3005926, 10520741, 21041482]

約数ペア:

[(1, 21041482), (2, 10520741), (7, 3005926), (11, 1912862), (14, 1502963), (22, 956431), (49, 429418), (77, 273266), (98, 214709), (131, 160622), (149, 141218), (154, 136633), (262, 80311), (298, 70609), (539, 39038), (917, 22946), (1043, 20174), (1078, 19519), (1441, 14602), (1639, 12838), (1834, 11473), (2086, 10087), (2882, 7301), (3278, 6419)]