19611956

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 44241120

約数和(自身を除く): 24629164

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 49, 52, 86, 91, 98, 172, 179, 182, 196, 301, 358, 364, 559, 602, 637, 716, 1118, 1204, 1253, 1274, 2107, 2236, 2327, 2506, 2548, 3913, 4214, 4654, 5012, 7697, 7826, 8428, 8771, 9308, 15394, 15652, 16289, 17542, 27391, 30788, 32578, 35084, 53879, 54782, 65156, 100061, 107758, 109564, 114023, 200122, 215516, 228046, 377153, 400244, 456092, 700427, 754306, 1400854, 1508612, 2801708, 4902989, 9805978, 19611956]

約数ペア:

[(1, 19611956), (2, 9805978), (4, 4902989), (7, 2801708), (13, 1508612), (14, 1400854), (26, 754306), (28, 700427), (43, 456092), (49, 400244), (52, 377153), (86, 228046), (91, 215516), (98, 200122), (172, 114023), (179, 109564), (182, 107758), (196, 100061), (301, 65156), (358, 54782), (364, 53879), (559, 35084), (602, 32578), (637, 30788), (716, 27391), (1118, 17542), (1204, 16289), (1253, 15652), (1274, 15394), (2107, 9308), (2236, 8771), (2327, 8428), (2506, 7826), (2548, 7697), (3913, 5012), (4214, 4654)]