21798476

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 45734976

約数和(自身を除く): 23936500

約数列:

[1, 2, 4, 7, 14, 28, 37, 53, 74, 106, 148, 212, 259, 371, 397, 518, 742, 794, 1036, 1484, 1588, 1961, 2779, 3922, 5558, 7844, 11116, 13727, 14689, 21041, 27454, 29378, 42082, 54908, 58756, 84164, 102823, 147287, 205646, 294574, 411292, 589148, 778517, 1557034, 3114068, 5449619, 10899238, 21798476]

約数ペア:

[(1, 21798476), (2, 10899238), (4, 5449619), (7, 3114068), (14, 1557034), (28, 778517), (37, 589148), (53, 411292), (74, 294574), (106, 205646), (148, 147287), (212, 102823), (259, 84164), (371, 58756), (397, 54908), (518, 42082), (742, 29378), (794, 27454), (1036, 21041), (1484, 14689), (1588, 13727), (1961, 11116), (2779, 7844), (3922, 5558)]