21965346

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 54774720

約数和(自身を除く): 32809374

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 43, 59, 74, 78, 86, 111, 117, 118, 129, 177, 222, 234, 258, 333, 354, 387, 481, 531, 559, 666, 767, 774, 962, 1062, 1118, 1443, 1534, 1591, 1677, 2183, 2301, 2537, 2886, 3182, 3354, 4329, 4366, 4602, 4773, 5031, 5074, 6549, 6903, 7611, 8658, 9546, 10062, 13098, 13806, 14319, 15222, 19647, 20683, 22833, 28379, 28638, 32981, 39294, 41366, 45666, 56758, 62049, 65962, 85137, 93869, 98943, 124098, 170274, 186147, 187738, 197886, 255411, 281607, 296829, 372294, 510822, 563214, 593658, 844821, 1220297, 1689642, 2440594, 3660891, 7321782, 10982673, 21965346]

約数ペア:

[(1, 21965346), (2, 10982673), (3, 7321782), (6, 3660891), (9, 2440594), (13, 1689642), (18, 1220297), (26, 844821), (37, 593658), (39, 563214), (43, 510822), (59, 372294), (74, 296829), (78, 281607), (86, 255411), (111, 197886), (117, 187738), (118, 186147), (129, 170274), (177, 124098), (222, 98943), (234, 93869), (258, 85137), (333, 65962), (354, 62049), (387, 56758), (481, 45666), (531, 41366), (559, 39294), (666, 32981), (767, 28638), (774, 28379), (962, 22833), (1062, 20683), (1118, 19647), (1443, 15222), (1534, 14319), (1591, 13806), (1677, 13098), (2183, 10062), (2301, 9546), (2537, 8658), (2886, 7611), (3182, 6903), (3354, 6549), (4329, 5074), (4366, 5031), (4602, 4773)]