19908156

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4243}}^1$

素因数の和:4290

約数の個数: 48

約数和(自身を含む): 51335424

約数和(自身を除く): 31427268

約数列:

[1, 2, 3, 4, 6, 12, 17, 23, 34, 46, 51, 68, 69, 92, 102, 138, 204, 276, 391, 782, 1173, 1564, 2346, 4243, 4692, 8486, 12729, 16972, 25458, 50916, 72131, 97589, 144262, 195178, 216393, 288524, 292767, 390356, 432786, 585534, 865572, 1171068, 1659013, 3318026, 4977039, 6636052, 9954078, 19908156]

約数ペア:

[(1, 19908156), (2, 9954078), (3, 6636052), (4, 4977039), (6, 3318026), (12, 1659013), (17, 1171068), (23, 865572), (34, 585534), (46, 432786), (51, 390356), (68, 292767), (69, 288524), (92, 216393), (102, 195178), (138, 144262), (204, 97589), (276, 72131), (391, 50916), (782, 25458), (1173, 16972), (1564, 12729), (2346, 8486), (4243, 4692)]