19753856

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 41783280

約数和(自身を除く): 22029424

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 64, 74, 86, 97, 128, 148, 172, 194, 296, 344, 388, 592, 688, 776, 1184, 1376, 1552, 1591, 2368, 2752, 3104, 3182, 3589, 4171, 4736, 5504, 6208, 6364, 7178, 8342, 12416, 12728, 14356, 16684, 25456, 28712, 33368, 50912, 57424, 66736, 101824, 114848, 133472, 154327, 203648, 229696, 266944, 308654, 459392, 533888, 617308, 1234616, 2469232, 4938464, 9876928, 19753856]

約数ペア:

[(1, 19753856), (2, 9876928), (4, 4938464), (8, 2469232), (16, 1234616), (32, 617308), (37, 533888), (43, 459392), (64, 308654), (74, 266944), (86, 229696), (97, 203648), (128, 154327), (148, 133472), (172, 114848), (194, 101824), (296, 66736), (344, 57424), (388, 50912), (592, 33368), (688, 28712), (776, 25456), (1184, 16684), (1376, 14356), (1552, 12728), (1591, 12416), (2368, 8342), (2752, 7178), (3104, 6364), (3182, 6208), (3589, 5504), (4171, 4736)]