21808170

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{59}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 60782400

約数和(自身を除く): 38974230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 59, 74, 90, 111, 118, 135, 177, 185, 222, 270, 295, 333, 354, 370, 531, 555, 590, 666, 885, 999, 1062, 1110, 1369, 1593, 1665, 1770, 1998, 2183, 2655, 2738, 3186, 3330, 4107, 4366, 4995, 5310, 6549, 6845, 7965, 8214, 9990, 10915, 12321, 13098, 13690, 15930, 19647, 20535, 21830, 24642, 32745, 36963, 39294, 41070, 58941, 61605, 65490, 73926, 80771, 98235, 117882, 123210, 161542, 184815, 196470, 242313, 294705, 369630, 403855, 484626, 589410, 726939, 807710, 1211565, 1453878, 2180817, 2423130, 3634695, 4361634, 7269390, 10904085, 21808170]

約数ペア:

[(1, 21808170), (2, 10904085), (3, 7269390), (5, 4361634), (6, 3634695), (9, 2423130), (10, 2180817), (15, 1453878), (18, 1211565), (27, 807710), (30, 726939), (37, 589410), (45, 484626), (54, 403855), (59, 369630), (74, 294705), (90, 242313), (111, 196470), (118, 184815), (135, 161542), (177, 123210), (185, 117882), (222, 98235), (270, 80771), (295, 73926), (333, 65490), (354, 61605), (370, 58941), (531, 41070), (555, 39294), (590, 36963), (666, 32745), (885, 24642), (999, 21830), (1062, 20535), (1110, 19647), (1369, 15930), (1593, 13690), (1665, 13098), (1770, 12321), (1998, 10915), (2183, 9990), (2655, 8214), (2738, 7965), (3186, 6845), (3330, 6549), (4107, 5310), (4366, 4995)]