21315336

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1787}}^1$

素因数の和:1874

約数の個数: 64

約数和(自身を含む): 61793280

約数和(自身を除く): 40477944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 142, 168, 213, 284, 426, 497, 568, 852, 994, 1491, 1704, 1787, 1988, 2982, 3574, 3976, 5361, 5964, 7148, 10722, 11928, 12509, 14296, 21444, 25018, 37527, 42888, 50036, 75054, 100072, 126877, 150108, 253754, 300216, 380631, 507508, 761262, 888139, 1015016, 1522524, 1776278, 2664417, 3045048, 3552556, 5328834, 7105112, 10657668, 21315336]

約数ペア:

[(1, 21315336), (2, 10657668), (3, 7105112), (4, 5328834), (6, 3552556), (7, 3045048), (8, 2664417), (12, 1776278), (14, 1522524), (21, 1015016), (24, 888139), (28, 761262), (42, 507508), (56, 380631), (71, 300216), (84, 253754), (142, 150108), (168, 126877), (213, 100072), (284, 75054), (426, 50036), (497, 42888), (568, 37527), (852, 25018), (994, 21444), (1491, 14296), (1704, 12509), (1787, 11928), (1988, 10722), (2982, 7148), (3574, 5964), (3976, 5361)]