19739356

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 44330496

約数和(自身を除く): 24591140

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 61, 91, 98, 122, 127, 182, 196, 244, 254, 364, 427, 508, 637, 793, 854, 889, 1274, 1586, 1651, 1708, 1778, 2548, 2989, 3172, 3302, 3556, 5551, 5978, 6223, 6604, 7747, 11102, 11557, 11956, 12446, 15494, 22204, 23114, 24892, 30988, 38857, 46228, 54229, 77714, 80899, 100711, 108458, 155428, 161798, 201422, 216916, 323596, 379603, 402844, 704977, 759206, 1409954, 1518412, 2819908, 4934839, 9869678, 19739356]

約数ペア:

[(1, 19739356), (2, 9869678), (4, 4934839), (7, 2819908), (13, 1518412), (14, 1409954), (26, 759206), (28, 704977), (49, 402844), (52, 379603), (61, 323596), (91, 216916), (98, 201422), (122, 161798), (127, 155428), (182, 108458), (196, 100711), (244, 80899), (254, 77714), (364, 54229), (427, 46228), (508, 38857), (637, 30988), (793, 24892), (854, 23114), (889, 22204), (1274, 15494), (1586, 12446), (1651, 11956), (1708, 11557), (1778, 11102), (2548, 7747), (2989, 6604), (3172, 6223), (3302, 5978), (3556, 5551)]