21105390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{607}}^1$

素因数の和:697

約数の個数: 64

約数和(自身を含む): 54282240

約数和(自身を除く): 33176850

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 61, 95, 114, 122, 183, 190, 285, 305, 366, 570, 607, 610, 915, 1159, 1214, 1821, 1830, 2318, 3035, 3477, 3642, 5795, 6070, 6954, 9105, 11533, 11590, 17385, 18210, 23066, 34599, 34770, 37027, 57665, 69198, 74054, 111081, 115330, 172995, 185135, 222162, 345990, 370270, 555405, 703513, 1110810, 1407026, 2110539, 3517565, 4221078, 7035130, 10552695, 21105390]

約数ペア:

[(1, 21105390), (2, 10552695), (3, 7035130), (5, 4221078), (6, 3517565), (10, 2110539), (15, 1407026), (19, 1110810), (30, 703513), (38, 555405), (57, 370270), (61, 345990), (95, 222162), (114, 185135), (122, 172995), (183, 115330), (190, 111081), (285, 74054), (305, 69198), (366, 57665), (570, 37027), (607, 34770), (610, 34599), (915, 23066), (1159, 18210), (1214, 17385), (1821, 11590), (1830, 11533), (2318, 9105), (3035, 6954), (3477, 6070), (3642, 5795)]