19998576

素因数分解:

$2^4\times 3^4\times {\mathrm{13}}^1\times {\mathrm{1187}}^1$

素因数の和:1220

約数の個数: 100

約数和(自身を含む): 62386632

約数和(自身を除く): 42388056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 81, 104, 108, 117, 144, 156, 162, 208, 216, 234, 312, 324, 351, 432, 468, 624, 648, 702, 936, 1053, 1187, 1296, 1404, 1872, 2106, 2374, 2808, 3561, 4212, 4748, 5616, 7122, 8424, 9496, 10683, 14244, 15431, 16848, 18992, 21366, 28488, 30862, 32049, 42732, 46293, 56976, 61724, 64098, 85464, 92586, 96147, 123448, 128196, 138879, 170928, 185172, 192294, 246896, 256392, 277758, 370344, 384588, 416637, 512784, 555516, 740688, 769176, 833274, 1111032, 1249911, 1538352, 1666548, 2222064, 2499822, 3333096, 4999644, 6666192, 9999288, 19998576]

約数ペア:

[(1, 19998576), (2, 9999288), (3, 6666192), (4, 4999644), (6, 3333096), (8, 2499822), (9, 2222064), (12, 1666548), (13, 1538352), (16, 1249911), (18, 1111032), (24, 833274), (26, 769176), (27, 740688), (36, 555516), (39, 512784), (48, 416637), (52, 384588), (54, 370344), (72, 277758), (78, 256392), (81, 246896), (104, 192294), (108, 185172), (117, 170928), (144, 138879), (156, 128196), (162, 123448), (208, 96147), (216, 92586), (234, 85464), (312, 64098), (324, 61724), (351, 56976), (432, 46293), (468, 42732), (624, 32049), (648, 30862), (702, 28488), (936, 21366), (1053, 18992), (1187, 16848), (1296, 15431), (1404, 14244), (1872, 10683), (2106, 9496), (2374, 8424), (2808, 7122), (3561, 5616), (4212, 4748)]