21502845

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 47174400

約数和(自身を除く): 25671555

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 59, 63, 65, 89, 91, 105, 117, 177, 195, 267, 273, 295, 315, 413, 445, 455, 531, 585, 623, 767, 801, 819, 885, 1157, 1239, 1335, 1365, 1869, 2065, 2301, 2655, 3115, 3471, 3717, 3835, 4005, 4095, 5251, 5369, 5607, 5785, 6195, 6903, 8099, 9345, 10413, 11505, 15753, 16107, 17355, 18585, 24297, 26255, 26845, 28035, 34515, 36757, 40495, 47259, 48321, 52065, 68263, 72891, 78765, 80535, 110271, 121485, 183785, 204789, 236295, 241605, 330813, 341315, 364455, 477841, 551355, 614367, 1023945, 1433523, 1654065, 2389205, 3071835, 4300569, 7167615, 21502845]

約数ペア:

[(1, 21502845), (3, 7167615), (5, 4300569), (7, 3071835), (9, 2389205), (13, 1654065), (15, 1433523), (21, 1023945), (35, 614367), (39, 551355), (45, 477841), (59, 364455), (63, 341315), (65, 330813), (89, 241605), (91, 236295), (105, 204789), (117, 183785), (177, 121485), (195, 110271), (267, 80535), (273, 78765), (295, 72891), (315, 68263), (413, 52065), (445, 48321), (455, 47259), (531, 40495), (585, 36757), (623, 34515), (767, 28035), (801, 26845), (819, 26255), (885, 24297), (1157, 18585), (1239, 17355), (1335, 16107), (1365, 15753), (1869, 11505), (2065, 10413), (2301, 9345), (2655, 8099), (3115, 6903), (3471, 6195), (3717, 5785), (3835, 5607), (4005, 5369), (4095, 5251)]