21545055

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{3257}}^1$

素因数の和:3285

約数の個数: 48

約数和(自身を含む): 44569440

約数和(自身を除く): 23024385

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 3257, 6615, 9771, 16285, 22799, 29313, 48855, 68397, 87939, 113995, 146565, 159593, 205191, 341985, 439695, 478779, 615573, 797965, 1025955, 1436337, 2393895, 3077865, 4309011, 7181685, 21545055]

約数ペア:

[(1, 21545055), (3, 7181685), (5, 4309011), (7, 3077865), (9, 2393895), (15, 1436337), (21, 1025955), (27, 797965), (35, 615573), (45, 478779), (49, 439695), (63, 341985), (105, 205191), (135, 159593), (147, 146565), (189, 113995), (245, 87939), (315, 68397), (441, 48855), (735, 29313), (945, 22799), (1323, 16285), (2205, 9771), (3257, 6615)]