19901196

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{523}}^1$

素因数の和:691

約数の個数: 72

約数和(自身を含む): 57983744

約数和(自身を除く): 38082548

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 151, 252, 302, 453, 523, 604, 906, 1046, 1057, 1359, 1569, 1812, 2092, 2114, 2718, 3138, 3171, 3661, 4228, 4707, 5436, 6276, 6342, 7322, 9414, 9513, 10983, 12684, 14644, 18828, 19026, 21966, 32949, 38052, 43932, 65898, 78973, 131796, 157946, 236919, 315892, 473838, 552811, 710757, 947676, 1105622, 1421514, 1658433, 2211244, 2843028, 3316866, 4975299, 6633732, 9950598, 19901196]

約数ペア:

[(1, 19901196), (2, 9950598), (3, 6633732), (4, 4975299), (6, 3316866), (7, 2843028), (9, 2211244), (12, 1658433), (14, 1421514), (18, 1105622), (21, 947676), (28, 710757), (36, 552811), (42, 473838), (63, 315892), (84, 236919), (126, 157946), (151, 131796), (252, 78973), (302, 65898), (453, 43932), (523, 38052), (604, 32949), (906, 21966), (1046, 19026), (1057, 18828), (1359, 14644), (1569, 12684), (1812, 10983), (2092, 9513), (2114, 9414), (2718, 7322), (3138, 6342), (3171, 6276), (3661, 5436), (4228, 4707)]