21702996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1213}}^1$

素因数の和:1301

約数の個数: 72

約数和(自身を含む): 63633024

約数和(自身を除く): 41930028

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 71, 84, 126, 142, 213, 252, 284, 426, 497, 639, 852, 994, 1213, 1278, 1491, 1988, 2426, 2556, 2982, 3639, 4473, 4852, 5964, 7278, 8491, 8946, 10917, 14556, 16982, 17892, 21834, 25473, 33964, 43668, 50946, 76419, 86123, 101892, 152838, 172246, 258369, 305676, 344492, 516738, 602861, 775107, 1033476, 1205722, 1550214, 1808583, 2411444, 3100428, 3617166, 5425749, 7234332, 10851498, 21702996]

約数ペア:

[(1, 21702996), (2, 10851498), (3, 7234332), (4, 5425749), (6, 3617166), (7, 3100428), (9, 2411444), (12, 1808583), (14, 1550214), (18, 1205722), (21, 1033476), (28, 775107), (36, 602861), (42, 516738), (63, 344492), (71, 305676), (84, 258369), (126, 172246), (142, 152838), (213, 101892), (252, 86123), (284, 76419), (426, 50946), (497, 43668), (639, 33964), (852, 25473), (994, 21834), (1213, 17892), (1278, 16982), (1491, 14556), (1988, 10917), (2426, 8946), (2556, 8491), (2982, 7278), (3639, 5964), (4473, 4852)]