16816995

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 35380800

約数和(自身を除く): 18563805

約数列:

[1, 3, 5, 9, 13, 15, 17, 19, 39, 45, 51, 57, 65, 85, 89, 95, 117, 153, 171, 195, 221, 247, 255, 267, 285, 323, 445, 585, 663, 741, 765, 801, 855, 969, 1105, 1157, 1235, 1335, 1513, 1615, 1691, 1989, 2223, 2907, 3315, 3471, 3705, 4005, 4199, 4539, 4845, 5073, 5785, 7565, 8455, 9945, 10413, 11115, 12597, 13617, 14535, 15219, 17355, 19669, 20995, 21983, 22695, 25365, 28747, 37791, 52065, 59007, 62985, 65949, 68085, 76095, 86241, 98345, 109915, 143735, 177021, 188955, 197847, 258723, 295035, 329745, 373711, 431205, 885105, 989235, 1121133, 1293615, 1868555, 3363399, 5605665, 16816995]

約数ペア:

[(1, 16816995), (3, 5605665), (5, 3363399), (9, 1868555), (13, 1293615), (15, 1121133), (17, 989235), (19, 885105), (39, 431205), (45, 373711), (51, 329745), (57, 295035), (65, 258723), (85, 197847), (89, 188955), (95, 177021), (117, 143735), (153, 109915), (171, 98345), (195, 86241), (221, 76095), (247, 68085), (255, 65949), (267, 62985), (285, 59007), (323, 52065), (445, 37791), (585, 28747), (663, 25365), (741, 22695), (765, 21983), (801, 20995), (855, 19669), (969, 17355), (1105, 15219), (1157, 14535), (1235, 13617), (1335, 12597), (1513, 11115), (1615, 10413), (1691, 9945), (1989, 8455), (2223, 7565), (2907, 5785), (3315, 5073), (3471, 4845), (3705, 4539), (4005, 4199)]