21213738

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1439}}^1$

素因数の和:1473

約数の個数: 80

約数和(自身を含む): 58544640

約数和(自身を除く): 37330902

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 81, 91, 117, 126, 162, 182, 189, 234, 273, 351, 378, 546, 567, 702, 819, 1053, 1134, 1439, 1638, 2106, 2457, 2878, 4317, 4914, 7371, 8634, 10073, 12951, 14742, 18707, 20146, 25902, 30219, 37414, 38853, 56121, 60438, 77706, 90657, 112242, 116559, 130949, 168363, 181314, 233118, 261898, 271971, 336726, 392847, 505089, 543942, 785694, 815913, 1010178, 1178541, 1515267, 1631826, 2357082, 3030534, 3535623, 7071246, 10606869, 21213738]

約数ペア:

[(1, 21213738), (2, 10606869), (3, 7071246), (6, 3535623), (7, 3030534), (9, 2357082), (13, 1631826), (14, 1515267), (18, 1178541), (21, 1010178), (26, 815913), (27, 785694), (39, 543942), (42, 505089), (54, 392847), (63, 336726), (78, 271971), (81, 261898), (91, 233118), (117, 181314), (126, 168363), (162, 130949), (182, 116559), (189, 112242), (234, 90657), (273, 77706), (351, 60438), (378, 56121), (546, 38853), (567, 37414), (702, 30219), (819, 25902), (1053, 20146), (1134, 18707), (1439, 14742), (1638, 12951), (2106, 10073), (2457, 8634), (2878, 7371), (4317, 4914)]