21931488

素因数分解:

$2^5\times 3^2\times {\mathrm{271}}^1\times {\mathrm{281}}^1$

素因数の和:568

約数の個数: 72

約数和(自身を含む): 62820576

約数和(自身を除く): 40889088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 271, 281, 288, 542, 562, 813, 843, 1084, 1124, 1626, 1686, 2168, 2248, 2439, 2529, 3252, 3372, 4336, 4496, 4878, 5058, 6504, 6744, 8672, 8992, 9756, 10116, 13008, 13488, 19512, 20232, 26016, 26976, 39024, 40464, 76151, 78048, 80928, 152302, 228453, 304604, 456906, 609208, 685359, 913812, 1218416, 1370718, 1827624, 2436832, 2741436, 3655248, 5482872, 7310496, 10965744, 21931488]

約数ペア:

[(1, 21931488), (2, 10965744), (3, 7310496), (4, 5482872), (6, 3655248), (8, 2741436), (9, 2436832), (12, 1827624), (16, 1370718), (18, 1218416), (24, 913812), (32, 685359), (36, 609208), (48, 456906), (72, 304604), (96, 228453), (144, 152302), (271, 80928), (281, 78048), (288, 76151), (542, 40464), (562, 39024), (813, 26976), (843, 26016), (1084, 20232), (1124, 19512), (1626, 13488), (1686, 13008), (2168, 10116), (2248, 9756), (2439, 8992), (2529, 8672), (3252, 6744), (3372, 6504), (4336, 5058), (4496, 4878)]