20978076

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{35677}}^1$

素因数の和:35698

約数の個数: 36

約数和(自身を含む): 56942088

約数和(自身を除く): 35964012

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 35677, 71354, 107031, 142708, 214062, 249739, 428124, 499478, 749217, 998956, 1498434, 1748173, 2996868, 3496346, 5244519, 6992692, 10489038, 20978076]

約数ペア:

[(1, 20978076), (2, 10489038), (3, 6992692), (4, 5244519), (6, 3496346), (7, 2996868), (12, 1748173), (14, 1498434), (21, 998956), (28, 749217), (42, 499478), (49, 428124), (84, 249739), (98, 214062), (147, 142708), (196, 107031), (294, 71354), (588, 35677)]