19643708

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 42747264

約数和(自身を除く): 23103556

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 53, 61, 62, 98, 106, 122, 124, 196, 212, 217, 244, 371, 427, 434, 742, 854, 868, 1484, 1519, 1643, 1708, 1891, 2597, 2989, 3038, 3233, 3286, 3782, 5194, 5978, 6076, 6466, 6572, 7564, 10388, 11501, 11956, 12932, 13237, 22631, 23002, 26474, 45262, 46004, 52948, 80507, 90524, 92659, 100223, 158417, 161014, 185318, 200446, 316834, 322028, 370636, 400892, 633668, 701561, 1403122, 2806244, 4910927, 9821854, 19643708]

約数ペア:

[(1, 19643708), (2, 9821854), (4, 4910927), (7, 2806244), (14, 1403122), (28, 701561), (31, 633668), (49, 400892), (53, 370636), (61, 322028), (62, 316834), (98, 200446), (106, 185318), (122, 161014), (124, 158417), (196, 100223), (212, 92659), (217, 90524), (244, 80507), (371, 52948), (427, 46004), (434, 45262), (742, 26474), (854, 23002), (868, 22631), (1484, 13237), (1519, 12932), (1643, 11956), (1708, 11501), (1891, 10388), (2597, 7564), (2989, 6572), (3038, 6466), (3233, 6076), (3286, 5978), (3782, 5194)]