2154521208

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{12941}}^1$

素因数の和:13948

約数の個数: 64

約数和(自身を含む): 6162462720

約数和(自身を除く): 4007941512

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 991, 1982, 2973, 3964, 5946, 6937, 7928, 11892, 12941, 13874, 20811, 23784, 25882, 27748, 38823, 41622, 51764, 55496, 77646, 83244, 90587, 103528, 155292, 166488, 181174, 271761, 310584, 362348, 543522, 724696, 1087044, 2174088, 12824531, 25649062, 38473593, 51298124, 76947186, 89771717, 102596248, 153894372, 179543434, 269315151, 307788744, 359086868, 538630302, 718173736, 1077260604, 2154521208]

約数ペア:

[(1, 2154521208), (2, 1077260604), (3, 718173736), (4, 538630302), (6, 359086868), (7, 307788744), (8, 269315151), (12, 179543434), (14, 153894372), (21, 102596248), (24, 89771717), (28, 76947186), (42, 51298124), (56, 38473593), (84, 25649062), (168, 12824531), (991, 2174088), (1982, 1087044), (2973, 724696), (3964, 543522), (5946, 362348), (6937, 310584), (7928, 271761), (11892, 181174), (12941, 166488), (13874, 155292), (20811, 103528), (23784, 90587), (25882, 83244), (27748, 77646), (38823, 55496), (41622, 51764)]