21543435

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 41587200

約数和(自身を除く): 20043765

約数列:

[1, 3, 5, 9, 15, 19, 27, 37, 45, 57, 95, 111, 135, 171, 185, 227, 285, 333, 513, 555, 681, 703, 855, 999, 1135, 1665, 2043, 2109, 2565, 3405, 3515, 4313, 4995, 6129, 6327, 8399, 10215, 10545, 12939, 18981, 21565, 25197, 30645, 31635, 38817, 41995, 64695, 75591, 94905, 116451, 125985, 159581, 194085, 226773, 377955, 478743, 582255, 797905, 1133865, 1436229, 2393715, 4308687, 7181145, 21543435]

約数ペア:

[(1, 21543435), (3, 7181145), (5, 4308687), (9, 2393715), (15, 1436229), (19, 1133865), (27, 797905), (37, 582255), (45, 478743), (57, 377955), (95, 226773), (111, 194085), (135, 159581), (171, 125985), (185, 116451), (227, 94905), (285, 75591), (333, 64695), (513, 41995), (555, 38817), (681, 31635), (703, 30645), (855, 25197), (999, 21565), (1135, 18981), (1665, 12939), (2043, 10545), (2109, 10215), (2565, 8399), (3405, 6327), (3515, 6129), (4313, 4995)]