21917784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{461}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 62979840

約数和(自身を除く): 41062056

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 283, 461, 566, 849, 922, 1132, 1383, 1698, 1844, 1981, 2264, 2766, 3227, 3396, 3688, 3962, 5532, 5943, 6454, 6792, 7924, 9681, 11064, 11886, 12908, 15848, 19362, 23772, 25816, 38724, 47544, 77448, 130463, 260926, 391389, 521852, 782778, 913241, 1043704, 1565556, 1826482, 2739723, 3131112, 3652964, 5479446, 7305928, 10958892, 21917784]

約数ペア:

[(1, 21917784), (2, 10958892), (3, 7305928), (4, 5479446), (6, 3652964), (7, 3131112), (8, 2739723), (12, 1826482), (14, 1565556), (21, 1043704), (24, 913241), (28, 782778), (42, 521852), (56, 391389), (84, 260926), (168, 130463), (283, 77448), (461, 47544), (566, 38724), (849, 25816), (922, 23772), (1132, 19362), (1383, 15848), (1698, 12908), (1844, 11886), (1981, 11064), (2264, 9681), (2766, 7924), (3227, 6792), (3396, 6454), (3688, 5943), (3962, 5532)]