21237984

素因数分解:

$2^5\times 3^3\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:589

約数の個数: 96

約数和(自身を含む): 63383040

約数和(自身を除く): 42145056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 47, 48, 54, 72, 94, 96, 108, 141, 144, 188, 216, 282, 288, 376, 423, 432, 523, 564, 752, 846, 864, 1046, 1128, 1269, 1504, 1569, 1692, 2092, 2256, 2538, 3138, 3384, 4184, 4512, 4707, 5076, 6276, 6768, 8368, 9414, 10152, 12552, 13536, 14121, 16736, 18828, 20304, 24581, 25104, 28242, 37656, 40608, 49162, 50208, 56484, 73743, 75312, 98324, 112968, 147486, 150624, 196648, 221229, 225936, 294972, 393296, 442458, 451872, 589944, 663687, 786592, 884916, 1179888, 1327374, 1769832, 2359776, 2654748, 3539664, 5309496, 7079328, 10618992, 21237984]

約数ペア:

[(1, 21237984), (2, 10618992), (3, 7079328), (4, 5309496), (6, 3539664), (8, 2654748), (9, 2359776), (12, 1769832), (16, 1327374), (18, 1179888), (24, 884916), (27, 786592), (32, 663687), (36, 589944), (47, 451872), (48, 442458), (54, 393296), (72, 294972), (94, 225936), (96, 221229), (108, 196648), (141, 150624), (144, 147486), (188, 112968), (216, 98324), (282, 75312), (288, 73743), (376, 56484), (423, 50208), (432, 49162), (523, 40608), (564, 37656), (752, 28242), (846, 25104), (864, 24581), (1046, 20304), (1128, 18828), (1269, 16736), (1504, 14121), (1569, 13536), (1692, 12552), (2092, 10152), (2256, 9414), (2538, 8368), (3138, 6768), (3384, 6276), (4184, 5076), (4512, 4707)]