21508470

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2153}}^1$

素因数の和:2206

約数の個数: 64

約数和(自身を含む): 58933440

約数和(自身を除く): 37424970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 2153, 3330, 4306, 4995, 6459, 9990, 10765, 12918, 19377, 21530, 32295, 38754, 58131, 64590, 79661, 96885, 116262, 159322, 193770, 238983, 290655, 398305, 477966, 581310, 716949, 796610, 1194915, 1433898, 2150847, 2389830, 3584745, 4301694, 7169490, 10754235, 21508470]

約数ペア:

[(1, 21508470), (2, 10754235), (3, 7169490), (5, 4301694), (6, 3584745), (9, 2389830), (10, 2150847), (15, 1433898), (18, 1194915), (27, 796610), (30, 716949), (37, 581310), (45, 477966), (54, 398305), (74, 290655), (90, 238983), (111, 193770), (135, 159322), (185, 116262), (222, 96885), (270, 79661), (333, 64590), (370, 58131), (555, 38754), (666, 32295), (999, 21530), (1110, 19377), (1665, 12918), (1998, 10765), (2153, 9990), (3330, 6459), (4306, 4995)]