18973395

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 40734720

約数和(自身を除く): 21761325

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 31, 35, 45, 63, 67, 87, 93, 105, 145, 155, 201, 203, 217, 261, 279, 315, 335, 435, 465, 469, 603, 609, 651, 899, 1005, 1015, 1085, 1305, 1395, 1407, 1827, 1943, 1953, 2077, 2345, 2697, 3015, 3045, 3255, 4221, 4495, 5829, 6231, 6293, 7035, 8091, 9135, 9715, 9765, 10385, 13485, 13601, 14539, 17487, 18693, 18879, 21105, 29145, 31155, 31465, 40455, 40803, 43617, 56637, 60233, 68005, 72695, 87435, 93465, 94395, 122409, 130851, 180699, 204015, 218085, 283185, 301165, 421631, 542097, 612045, 654255, 903495, 1264893, 2108155, 2710485, 3794679, 6324465, 18973395]

約数ペア:

[(1, 18973395), (3, 6324465), (5, 3794679), (7, 2710485), (9, 2108155), (15, 1264893), (21, 903495), (29, 654255), (31, 612045), (35, 542097), (45, 421631), (63, 301165), (67, 283185), (87, 218085), (93, 204015), (105, 180699), (145, 130851), (155, 122409), (201, 94395), (203, 93465), (217, 87435), (261, 72695), (279, 68005), (315, 60233), (335, 56637), (435, 43617), (465, 40803), (469, 40455), (603, 31465), (609, 31155), (651, 29145), (899, 21105), (1005, 18879), (1015, 18693), (1085, 17487), (1305, 14539), (1395, 13601), (1407, 13485), (1827, 10385), (1943, 9765), (1953, 9715), (2077, 9135), (2345, 8091), (2697, 7035), (3015, 6293), (3045, 6231), (3255, 5829), (4221, 4495)]