21443331

素因数分解:

$3^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:273

約数の個数: 40

約数和(自身を含む): 36076880

約数和(自身を除く): 14633549

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 229, 273, 343, 637, 687, 1029, 1603, 1911, 2401, 2977, 4459, 4809, 7203, 8931, 11221, 13377, 20839, 31213, 33663, 62517, 78547, 93639, 145873, 235641, 437619, 549829, 1021111, 1649487, 3063333, 7147777, 21443331]

約数ペア:

[(1, 21443331), (3, 7147777), (7, 3063333), (13, 1649487), (21, 1021111), (39, 549829), (49, 437619), (91, 235641), (147, 145873), (229, 93639), (273, 78547), (343, 62517), (637, 33663), (687, 31213), (1029, 20839), (1603, 13377), (1911, 11221), (2401, 8931), (2977, 7203), (4459, 4809)]