18939690

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{911}}^1$

素因数の和:945

約数の個数: 128

約数和(自身を含む): 63037440

約数和(自身を除く): 44097750

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 135, 154, 165, 189, 198, 210, 231, 270, 297, 315, 330, 378, 385, 462, 495, 594, 630, 693, 770, 911, 945, 990, 1155, 1386, 1485, 1822, 1890, 2079, 2310, 2733, 2970, 3465, 4158, 4555, 5466, 6377, 6930, 8199, 9110, 10021, 10395, 12754, 13665, 16398, 19131, 20042, 20790, 24597, 27330, 30063, 31885, 38262, 40995, 49194, 50105, 57393, 60126, 63770, 70147, 81990, 90189, 95655, 100210, 114786, 122985, 140294, 150315, 172179, 180378, 191310, 210441, 245970, 270567, 286965, 300630, 344358, 350735, 420882, 450945, 541134, 573930, 631323, 701470, 860895, 901890, 1052205, 1262646, 1352835, 1721790, 1893969, 2104410, 2705670, 3156615, 3787938, 6313230, 9469845, 18939690]

約数ペア:

[(1, 18939690), (2, 9469845), (3, 6313230), (5, 3787938), (6, 3156615), (7, 2705670), (9, 2104410), (10, 1893969), (11, 1721790), (14, 1352835), (15, 1262646), (18, 1052205), (21, 901890), (22, 860895), (27, 701470), (30, 631323), (33, 573930), (35, 541134), (42, 450945), (45, 420882), (54, 350735), (55, 344358), (63, 300630), (66, 286965), (70, 270567), (77, 245970), (90, 210441), (99, 191310), (105, 180378), (110, 172179), (126, 150315), (135, 140294), (154, 122985), (165, 114786), (189, 100210), (198, 95655), (210, 90189), (231, 81990), (270, 70147), (297, 63770), (315, 60126), (330, 57393), (378, 50105), (385, 49194), (462, 40995), (495, 38262), (594, 31885), (630, 30063), (693, 27330), (770, 24597), (911, 20790), (945, 20042), (990, 19131), (1155, 16398), (1386, 13665), (1485, 12754), (1822, 10395), (1890, 10021), (2079, 9110), (2310, 8199), (2733, 6930), (2970, 6377), (3465, 5466), (4158, 4555)]