19864221376

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{178481}}^1$

素因数の和:178577

約数の個数: 56

約数和(自身を含む): 41344998336

約数和(自身を除く): 21480776960

約数列:

[1, 2, 4, 8, 16, 32, 37, 47, 64, 74, 94, 148, 188, 296, 376, 592, 752, 1184, 1504, 1739, 2368, 3008, 3478, 6956, 13912, 27824, 55648, 111296, 178481, 356962, 713924, 1427848, 2855696, 5711392, 6603797, 8388607, 11422784, 13207594, 16777214, 26415188, 33554428, 52830376, 67108856, 105660752, 134217712, 211321504, 268435424, 310378459, 422643008, 536870848, 620756918, 1241513836, 2483027672, 4966055344, 9932110688, 19864221376]

約数ペア:

[(1, 19864221376), (2, 9932110688), (4, 4966055344), (8, 2483027672), (16, 1241513836), (32, 620756918), (37, 536870848), (47, 422643008), (64, 310378459), (74, 268435424), (94, 211321504), (148, 134217712), (188, 105660752), (296, 67108856), (376, 52830376), (592, 33554428), (752, 26415188), (1184, 16777214), (1504, 13207594), (1739, 11422784), (2368, 8388607), (3008, 6603797), (3478, 5711392), (6956, 2855696), (13912, 1427848), (27824, 713924), (55648, 356962), (111296, 178481)]