21907038

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 48787200

約数和(自身を除く): 26880162

約数列:

[1, 2, 3, 6, 19, 38, 41, 43, 57, 82, 86, 109, 114, 123, 129, 218, 246, 258, 327, 654, 779, 817, 1558, 1634, 1763, 2071, 2337, 2451, 3526, 4142, 4469, 4674, 4687, 4902, 5289, 6213, 8938, 9374, 10578, 12426, 13407, 14061, 26814, 28122, 33497, 66994, 84911, 89053, 100491, 169822, 178106, 192167, 200982, 254733, 267159, 384334, 509466, 534318, 576501, 1153002, 3651173, 7302346, 10953519, 21907038]

約数ペア:

[(1, 21907038), (2, 10953519), (3, 7302346), (6, 3651173), (19, 1153002), (38, 576501), (41, 534318), (43, 509466), (57, 384334), (82, 267159), (86, 254733), (109, 200982), (114, 192167), (123, 178106), (129, 169822), (218, 100491), (246, 89053), (258, 84911), (327, 66994), (654, 33497), (779, 28122), (817, 26814), (1558, 14061), (1634, 13407), (1763, 12426), (2071, 10578), (2337, 9374), (2451, 8938), (3526, 6213), (4142, 5289), (4469, 4902), (4674, 4687)]