21482748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{523}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 62561408

約数和(自身を除く): 41078660

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 163, 252, 326, 489, 523, 652, 978, 1046, 1141, 1467, 1569, 1956, 2092, 2282, 2934, 3138, 3423, 3661, 4564, 4707, 5868, 6276, 6846, 7322, 9414, 10269, 10983, 13692, 14644, 18828, 20538, 21966, 32949, 41076, 43932, 65898, 85249, 131796, 170498, 255747, 340996, 511494, 596743, 767241, 1022988, 1193486, 1534482, 1790229, 2386972, 3068964, 3580458, 5370687, 7160916, 10741374, 21482748]

約数ペア:

[(1, 21482748), (2, 10741374), (3, 7160916), (4, 5370687), (6, 3580458), (7, 3068964), (9, 2386972), (12, 1790229), (14, 1534482), (18, 1193486), (21, 1022988), (28, 767241), (36, 596743), (42, 511494), (63, 340996), (84, 255747), (126, 170498), (163, 131796), (252, 85249), (326, 65898), (489, 43932), (523, 41076), (652, 32949), (978, 21966), (1046, 20538), (1141, 18828), (1467, 14644), (1569, 13692), (1956, 10983), (2092, 10269), (2282, 9414), (2934, 7322), (3138, 6846), (3423, 6276), (3661, 5868), (4564, 4707)]