21167690229

素因数分解:

$3^4\times 7^1\times {\mathrm{151}}^1\times {\mathrm{457}}^1\times {\mathrm{541}}^1$

素因数の和:1168

約数の個数: 80

約数和(自身を含む): 36524452096

約数和(自身を除く): 15356761867

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 151, 189, 453, 457, 541, 567, 1057, 1359, 1371, 1623, 3171, 3199, 3787, 4077, 4113, 4869, 9513, 9597, 11361, 12231, 12339, 14607, 28539, 28791, 34083, 37017, 43821, 69007, 81691, 85617, 86373, 102249, 207021, 245073, 247237, 259119, 306747, 483049, 571837, 621063, 735219, 741711, 1449147, 1715511, 1730659, 1863189, 2205657, 2225133, 4347441, 5146533, 5191977, 5589567, 6616971, 6675399, 13042323, 15439599, 15575931, 20026197, 37332787, 39126969, 46318797, 46727793, 111998361, 140183379, 261329509, 335995083, 783988527, 1007985249, 2351965581, 3023955747, 7055896743, 21167690229]

約数ペア:

[(1, 21167690229), (3, 7055896743), (7, 3023955747), (9, 2351965581), (21, 1007985249), (27, 783988527), (63, 335995083), (81, 261329509), (151, 140183379), (189, 111998361), (453, 46727793), (457, 46318797), (541, 39126969), (567, 37332787), (1057, 20026197), (1359, 15575931), (1371, 15439599), (1623, 13042323), (3171, 6675399), (3199, 6616971), (3787, 5589567), (4077, 5191977), (4113, 5146533), (4869, 4347441), (9513, 2225133), (9597, 2205657), (11361, 1863189), (12231, 1730659), (12339, 1715511), (14607, 1449147), (28539, 741711), (28791, 735219), (34083, 621063), (37017, 571837), (43821, 483049), (69007, 306747), (81691, 259119), (85617, 247237), (86373, 245073), (102249, 207021)]