20568735

素因数分解:

$3^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:62

約数の個数: 80

約数和(自身を含む): 42514560

約数和(自身を除く): 21945825

約数列:

[1, 3, 5, 9, 11, 15, 19, 27, 33, 45, 55, 57, 81, 95, 99, 135, 165, 171, 209, 243, 285, 297, 405, 495, 513, 627, 729, 855, 891, 1045, 1215, 1485, 1539, 1881, 2187, 2565, 2673, 3135, 3645, 4455, 4617, 5643, 6561, 7695, 8019, 9405, 10935, 13365, 13851, 16929, 19683, 23085, 24057, 28215, 32805, 40095, 41553, 50787, 69255, 72171, 84645, 98415, 120285, 124659, 152361, 207765, 216513, 253935, 360855, 373977, 457083, 623295, 761805, 1082565, 1371249, 1869885, 2285415, 4113747, 6856245, 20568735]

約数ペア:

[(1, 20568735), (3, 6856245), (5, 4113747), (9, 2285415), (11, 1869885), (15, 1371249), (19, 1082565), (27, 761805), (33, 623295), (45, 457083), (55, 373977), (57, 360855), (81, 253935), (95, 216513), (99, 207765), (135, 152361), (165, 124659), (171, 120285), (209, 98415), (243, 84645), (285, 72171), (297, 69255), (405, 50787), (495, 41553), (513, 40095), (627, 32805), (729, 28215), (855, 24057), (891, 23085), (1045, 19683), (1215, 16929), (1485, 13851), (1539, 13365), (1881, 10935), (2187, 9405), (2565, 8019), (2673, 7695), (3135, 6561), (3645, 5643), (4455, 4617)]