19887756

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{733}}^1$

素因数の和:783

約数の個数: 96

約数和(自身を含む): 59189760

約数和(自身を除く): 39302004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 51, 57, 68, 76, 84, 102, 114, 119, 133, 204, 228, 238, 266, 323, 357, 399, 476, 532, 646, 714, 733, 798, 969, 1292, 1428, 1466, 1596, 1938, 2199, 2261, 2932, 3876, 4398, 4522, 5131, 6783, 8796, 9044, 10262, 12461, 13566, 13927, 15393, 20524, 24922, 27132, 27854, 30786, 37383, 41781, 49844, 55708, 61572, 74766, 83562, 87227, 97489, 149532, 167124, 174454, 194978, 236759, 261681, 292467, 348908, 389956, 473518, 523362, 584934, 710277, 947036, 1046724, 1169868, 1420554, 1657313, 2841108, 3314626, 4971939, 6629252, 9943878, 19887756]

約数ペア:

[(1, 19887756), (2, 9943878), (3, 6629252), (4, 4971939), (6, 3314626), (7, 2841108), (12, 1657313), (14, 1420554), (17, 1169868), (19, 1046724), (21, 947036), (28, 710277), (34, 584934), (38, 523362), (42, 473518), (51, 389956), (57, 348908), (68, 292467), (76, 261681), (84, 236759), (102, 194978), (114, 174454), (119, 167124), (133, 149532), (204, 97489), (228, 87227), (238, 83562), (266, 74766), (323, 61572), (357, 55708), (399, 49844), (476, 41781), (532, 37383), (646, 30786), (714, 27854), (733, 27132), (798, 24922), (969, 20524), (1292, 15393), (1428, 13927), (1466, 13566), (1596, 12461), (1938, 10262), (2199, 9044), (2261, 8796), (2932, 6783), (3876, 5131), (4398, 4522)]