161321517

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 315187200

約数和(自身を除く): 153865683

約数列:

[1, 3, 7, 9, 17, 21, 23, 27, 37, 51, 59, 63, 69, 111, 119, 153, 161, 177, 189, 207, 259, 333, 357, 391, 413, 459, 483, 531, 621, 629, 777, 851, 999, 1003, 1071, 1173, 1239, 1357, 1449, 1593, 1887, 2183, 2331, 2553, 2737, 3009, 3213, 3519, 3717, 4071, 4347, 4403, 5661, 5957, 6549, 6993, 7021, 7659, 8211, 9027, 9499, 10557, 11151, 12213, 13209, 14467, 15281, 16983, 17871, 19647, 21063, 22977, 23069, 24633, 27081, 28497, 36639, 37111, 39627, 43401, 45843, 50209, 53613, 58941, 63189, 69207, 73899, 85491, 101269, 111333, 118881, 130203, 137529, 150627, 160839, 161483, 189567, 207621, 256473, 259777, 303807, 333999, 351463, 390609, 412587, 451881, 484449, 622863, 779331, 853553, 911421, 1001997, 1054389, 1355643, 1453347, 2337993, 2560659, 2734263, 3163167, 4360041, 5974871, 7013979, 7681977, 9489501, 17924613, 23045931, 53773839, 161321517]

約数ペア:

[(1, 161321517), (3, 53773839), (7, 23045931), (9, 17924613), (17, 9489501), (21, 7681977), (23, 7013979), (27, 5974871), (37, 4360041), (51, 3163167), (59, 2734263), (63, 2560659), (69, 2337993), (111, 1453347), (119, 1355643), (153, 1054389), (161, 1001997), (177, 911421), (189, 853553), (207, 779331), (259, 622863), (333, 484449), (357, 451881), (391, 412587), (413, 390609), (459, 351463), (483, 333999), (531, 303807), (621, 259777), (629, 256473), (777, 207621), (851, 189567), (999, 161483), (1003, 160839), (1071, 150627), (1173, 137529), (1239, 130203), (1357, 118881), (1449, 111333), (1593, 101269), (1887, 85491), (2183, 73899), (2331, 69207), (2553, 63189), (2737, 58941), (3009, 53613), (3213, 50209), (3519, 45843), (3717, 43401), (4071, 39627), (4347, 37111), (4403, 36639), (5661, 28497), (5957, 27081), (6549, 24633), (6993, 23069), (7021, 22977), (7659, 21063), (8211, 19647), (9027, 17871), (9499, 16983), (10557, 15281), (11151, 14467), (12213, 13209)]