21633345

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 40711680

約数和(自身を除く): 19078335

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 61, 71, 111, 135, 183, 185, 213, 305, 333, 355, 549, 555, 639, 915, 999, 1065, 1647, 1665, 1917, 2257, 2627, 2745, 3195, 4331, 4995, 6771, 7881, 8235, 9585, 11285, 12993, 13135, 20313, 21655, 23643, 33855, 38979, 39405, 60939, 64965, 70929, 101565, 116937, 118215, 160247, 194895, 304695, 354645, 480741, 584685, 801235, 1442223, 2403705, 4326669, 7211115, 21633345]

約数ペア:

[(1, 21633345), (3, 7211115), (5, 4326669), (9, 2403705), (15, 1442223), (27, 801235), (37, 584685), (45, 480741), (61, 354645), (71, 304695), (111, 194895), (135, 160247), (183, 118215), (185, 116937), (213, 101565), (305, 70929), (333, 64965), (355, 60939), (549, 39405), (555, 38979), (639, 33855), (915, 23643), (999, 21655), (1065, 20313), (1647, 13135), (1665, 12993), (1917, 11285), (2257, 9585), (2627, 8235), (2745, 7881), (3195, 6771), (4331, 4995)]