25656561

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 46694400

約数和(自身を除く): 21037839

約数列:

[1, 3, 7, 9, 21, 27, 29, 31, 63, 87, 93, 151, 189, 203, 217, 261, 279, 453, 609, 651, 783, 837, 899, 1057, 1359, 1827, 1953, 2697, 3171, 4077, 4379, 4681, 5481, 5859, 6293, 8091, 9513, 13137, 14043, 18879, 24273, 28539, 30653, 32767, 39411, 42129, 56637, 91959, 98301, 118233, 126387, 135749, 169911, 275877, 294903, 407247, 827631, 884709, 950243, 1221741, 2850729, 3665223, 8552187, 25656561]

約数ペア:

[(1, 25656561), (3, 8552187), (7, 3665223), (9, 2850729), (21, 1221741), (27, 950243), (29, 884709), (31, 827631), (63, 407247), (87, 294903), (93, 275877), (151, 169911), (189, 135749), (203, 126387), (217, 118233), (261, 98301), (279, 91959), (453, 56637), (609, 42129), (651, 39411), (783, 32767), (837, 30653), (899, 28539), (1057, 24273), (1359, 18879), (1827, 14043), (1953, 13137), (2697, 9513), (3171, 8091), (4077, 6293), (4379, 5859), (4681, 5481)]